Specific alloys not less than 85% chromium and nickel or cobalt, with traces of either nickel or cobalt, molybdenum, and other substances. They are used in partial dentures, orthopedic implants, etc.
A trace element that plays a role in glucose metabolism. It has the atomic symbol Cr, atomic number 24, and atomic weight 52. According to the Fourth Annual Report on Carcinogens (NTP85-002,1985), chromium and some of its compounds have been listed as known carcinogens.
A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.
Alloys that contain a high percentage of gold. They are used in restorative or prosthetic dentistry.
Inorganic compounds that contain chromium as an integral part of the molecule.
The fusion of ceramics (porcelain) to an alloy of two or more metals for use in restorative and prosthodontic dentistry. Examples of metal alloys employed include cobalt-chromium, gold-palladium, gold-platinum-palladium, and nickel-based alloys.
Salts of chromic acid containing the CrO(2-)4 radical.
A dark-gray, metallic element of widespread distribution but occurring in small amounts; atomic number, 22; atomic weight, 47.90; symbol, Ti; specific gravity, 4.5; used for fixation of fractures. (Dorland, 28th ed)

Initial orthopaedic displacement compared with longitudinal displacement of the maxilla after a forward force application. An experimental study in dogs. (1/236)

The aim of this study was to compare the initial orthopaedic displacement of the maxilla in vivo and the longitudinal changes after a forward force application. The sample consisted of five 1-year-old dogs. An anterior force of 5 N on the maxilla was applied by a coil spring system pushing between Branemark implants and a maxillary splint. The initial displacement of the maxilla after force application was measured by means of speckle interferometry. The longitudinal displacement of the maxilla after a force application during 8 weeks was measured by superimposing standardized lateral cephalograms. The initial, as well as the longitudinal, displacement of the maxilla of the dogs was in a forward direction with some counterclockwise rotation. There was no statistical difference between the initial and longitudinal displacement. The biological response after force application during 8 weeks can be predicted by the initial orthopaedic displacement.  (+info)

The fixation of the cemented femoral component. Effects of stem stiffness, cement thickness and roughness of the cement-bone surface. (2/236)

After cemented total hip arthroplasty (THA) there may be failure at either the cement-stem or the cement-bone interface. This results from the occurrence of abnormally high shear and compressive stresses within the cement and excessive relative micromovement. We therefore evaluated micromovement and stress at the cement-bone and cement-stem interfaces for a titanium and a chromium-cobalt stem. The behaviour of both implants was similar and no substantial differences were found in the size and distribution of micromovement on either interface with respect to the stiffness of the stem. Micromovement was minimal with a cement mantle 3 to 4 mm thick but then increased with greater thickness of the cement. Abnormally high micromovement occurred when the cement was thinner than 2 mm and the stem was made of titanium. The relative decrease in surface roughness augmented slipping but decreased debonding at the cement-bone interface. Shear stress at this site did not vary significantly for the different coefficients of cement-bone friction while compressive and hoop stresses within the cement increased slightly.  (+info)

Comparison of in vivo wear between polyethylene liners articulating with ceramic and cobalt-chrome femoral heads. (3/236)

At yearly intervals we compared the radiological wear characteristics of 81 alumina ceramic femoral heads with a well-matched group of 43 cobalt-chrome femoral heads. Using a computer-assisted measurement system we assessed two-dimensional penetration of the head into the polyethylene liner. We used linear regression analysis of temporal data of the penetration of the head to calculate the true rates of polyethylene wear for both groups. At a mean of seven years the true rate of wear of the ceramic group was slightly greater (0.09 mm/year, SD 0.07) than that of the cobalt-chrome group (0.07 mm/year, SD 0.04). Despite the numerous theoretical advantages of ceramic over cobalt-chrome femoral heads, the wear performance in vivo of these components was similar.  (+info)

Unusual indelible enamel staining following fixed appliance treatment. (4/236)

Two cases are described of indelible enamel staining following fixed appliance therapy. The acquired pigmentation occurred in patients with an identifiable enamel defect prior to treatment. The interaction of factors to cause the staining is discussed and it's prevention in future cases highlighted. Subsequent restoration of the affected teeth is shown.  (+info)

Influence of finishing on the electrochemical properties of dental alloys. (5/236)

Dental alloy surface finishing procedures of may influence their electrochemical behavior, which is used to evaluate their corrosion resistance. We examined the polarization resistance and potentiodynamic polarization profile of the precious-metal alloys, Type 4 gold alloy and silver-palladium alloy, and the base-metal alloys, nickel-chromium alloy, cobalt-chromium alloy, and CP-titanium. Three types of finishing procedure were examined: mirror-finishing using 0.05 micron alumina particles, polishing using #600 abrasive paper and sandblasting. Dissolution of the alloy elements in 0.9% NaCl solution was also measured and compared with the electrochemical evaluation. The corrosion resistance of the dental alloys was found to relate to finishing as follows: The polarization resistance and potentiodynamic polarization behavior revealed that the corrosion resistance improved in the order of sandblasting, #600-abrasive-paper polishing, and mirror-finishing. While the corrosion potential, critical current density and passive current density varied depending on the type of finishing, the transpassive potential remained unchanged. The influence of finishing on the corrosion resistance of precious-metal alloys was less significant than on that of base-metal alloys. A mirror-finishing specimen was recommended for use in evaluation of the corrosion resistance of various dental alloys.  (+info)

Effect of the adhesive layer thickness on the fracture toughness of dental adhesive resins. (6/236)

We investigated how the thickness of an adhesive layer between two Co-Cr alloy plates affected the mode I fracture toughness of dental adhesive resin by varying the type of resin using a double cantilever beam (DCB) test. Two typical adhesive resins (PV and SB) were used. The adhesive layers of the DCB test specimens were 20, 100 and 200 microns thick. The fracture modes of PV differed with the thickness of the adhesive layer, such as interface fracture at 20 microns thickness, and similar cohesive fracture at 100 and 200 microns thickness. In the case of SB, crack-propagating areas were observed as cohesive fractures in all test specimens with different adhesive layer thickness, and the surfaces of these areas became remarkably rougher as the thickness of the adhesive layer increased. The fracture toughness of PV was not affected by the differences in thickness between the 100 and 200 microns adhesive layers, but there was a notable decrease in fracture toughness when the adhesive layer decreased to a thickness of 20 microns. That of SB showed a tendency to increase as the adhesive layer became thicker.  (+info)

The laser welding technique applied to the non precious dental alloys procedure and results. (7/236)

AIM: The laser welding technique was chosen for its versatility in the repair of dental metal prosthesis. The aim of this research is to assess the accuracy, quality and reproducibility of this technique as applied to Ni-Cr-Mo and Cr-Co-Mo alloys often used to make prosthesis METHOD: The alloy's ability to weld was evaluated with a pulsed Nd-Yag Laser equipment. In order to evaluate the joining, various cast wires with different diameters were used. The efficiency of the joining was measured with tensile tests. In order to understand this difference, metallographic examinations and X-Ray microprobe analysis were performed through the welded area and compared with the cast part. RESULTS: It was found that a very slight change in the chemistry of the Ni-Cr alloys had a strong influence on the quality of the joining. The Co-Cr alloy presented an excellent weldability. A very important change in the microstructure due to the effect of the laser was pointed out in the welding zone, increasing its micro-hardness. CONCLUSION: The higher level of carbon and boron in one of the two Ni-Cr was found to be responsible for its poor welding ability. However for the others, the maximum depth of welding was found to be around 2mm which is one of the usual thicknesses of the components which have to be repaired.  (+info)

Influence of polyethylene and femoral head surface quality on wear: a retrieval study. (8/236)

Thirty-two polyethylene sockets and 22 femoral heads were retrieved because of aseptic loosening more than 9 years after total hip arthroplasty. The volumetric wear rates of the retrieved polyethylene sockets were significantly greater in those coupled with an alumina head (P < 0.05). The retrieved alumina heads showed significantly better surface roughness and roundness than heads of Co-Cr and of stainless steel (P < 0.05). However, no significant difference was found in polyethylene quality demonstrated as fusion defects among the three different groups. The present study suggests that maintaining better surface roughness and roundness of the femoral heads does not always result in an in vivo reduction of polyethylene wear.  (+info)

Chromium alloys are materials made by combining chromium with other metals, such as nickel, cobalt, or iron. The addition of chromium to these alloys enhances their properties, making them resistant to corrosion and high temperatures. These alloys have a wide range of applications in various industries, including automotive, aerospace, and medical devices.

Chromium alloys can be classified into two main categories: stainless steels and superalloys. Stainless steels are alloys that contain at least 10.5% chromium by weight, which forms a passive oxide layer on the surface of the material, protecting it from corrosion. Superalloys, on the other hand, are high-performance alloys designed to operate in extreme environments, such as jet engines and gas turbines. They contain significant amounts of chromium, along with other elements like nickel, cobalt, and molybdenum.

Chromium alloys have several medical applications due to their excellent properties. For instance, they are used in surgical instruments, dental implants, and orthopedic devices because of their resistance to corrosion and biocompatibility. Additionally, some chromium alloys exhibit superelasticity, a property that allows them to return to their original shape after being deformed, making them suitable for use in stents and other medical devices that require flexibility and durability.

Chromium is an essential trace element that is necessary for human health. It is a key component of the glucose tolerance factor, which helps to enhance the function of insulin in regulating blood sugar levels. Chromium can be found in various foods such as meat, fish, whole grains, and some fruits and vegetables. However, it is also available in dietary supplements for those who may not get adequate amounts through their diet.

The recommended daily intake of chromium varies depending on age and gender. For adults, the adequate intake (AI) is 20-35 micrograms per day for women and 35-50 micrograms per day for men. Chromium deficiency is rare but can lead to impaired glucose tolerance, insulin resistance, and increased risk of developing type 2 diabetes.

It's important to note that while chromium supplements are marketed as a way to improve insulin sensitivity and blood sugar control, there is limited evidence to support these claims. Moreover, excessive intake of chromium can have adverse effects on health, including liver and kidney damage, stomach irritation, and hypoglycemia. Therefore, it's recommended to consult with a healthcare provider before taking any dietary supplements containing chromium.

'Alloys' is not a medical term. It is a term used in materials science and engineering to describe a mixture or solid solution composed of two or more elements, at least one of which is a metal. The components are typically present in significant amounts (>1% by weight). The properties of alloys, such as their strength, durability, and corrosion resistance, often differ from those of the constituent elements.

While not directly related to medicine, some alloys do have medical applications. For example, certain alloys are used in orthopedic implants, dental restorations, and other medical devices due to their desirable properties such as biocompatibility, strength, and resistance to corrosion.

Gold alloys are not strictly a medical term, but they are often used in medical applications, particularly in the field of dentistry. Therefore, I will provide both a general definition and a dental-specific definition for clarity.

A gold alloy is a mixture of different metals, where gold is the primary component. The other metals are added to modify the properties of gold, such as its hardness, melting point, or color. These alloys can contain varying amounts of gold, ranging from 30% to 75%, depending on their intended use.

In dentistry, gold alloys refer to a specific type of alloy used for dental restorations like crowns, inlays, and onlays. These alloys typically contain between 60% and 90% gold, along with other metals such as silver, copper, and sometimes palladium or zinc. The high gold content ensures excellent biocompatibility, corrosion resistance, and durability, making these alloys a popular choice for dental applications. Additionally, their malleability allows for precise shaping and adjustment during the fabrication process.

Chromium compounds refer to combinations of the metallic element chromium with other chemical elements. Chromium is a transition metal that can form compounds in various oxidation states, but the most common ones are +3 (trivalent) and +6 (hexavalent).

Trivalent chromium compounds, such as chromium(III) chloride or chromium(III) sulfate, are essential micronutrients for human health, playing a role in insulin function and glucose metabolism. They are generally considered to be less toxic than hexavalent chromium compounds.

Hexavalent chromium compounds, such as chromium(VI) oxide or sodium dichromate, are much more toxic and carcinogenic than trivalent chromium compounds. They can cause damage to the respiratory system, skin, and eyes, and prolonged exposure has been linked to an increased risk of lung cancer.

It is important to note that while some chromium compounds have beneficial effects on human health, others can be highly toxic and should be handled with care. Exposure to hexavalent chromium compounds, in particular, should be minimized or avoided whenever possible.

I'm sorry for any confusion, but "Metal Ceramic Alloys" is not a recognized medical term. It is, however, a term used in the field of materials science and engineering. Metal ceramic alloys, also known as cermets, are materials that combine properties of both metals and ceramics. They are typically composed of a metal or alloy matrix with embedded ceramic particles.

In the context of medical devices or dental restorations, the term you might be looking for is "porcelain-fused-to-metal" (PFM). PFM restorations are a type of dental crown or bridge that combines a metal substructure with a ceramic outer layer. The metal provides strength and durability, while the ceramic layer mimics the appearance of natural teeth.

If you have any questions related to medical terminology or definitions, please don't hesitate to ask!

Chromates are the salts or esters of chromic acid (H2CrO4) that contain the chromate ion (CrO4 2-). They are characterized by their yellow or orange color. Chromates are widely used in industry, for example as corrosion inhibitors, pigments, and wood preservatives. However, they are also toxic and carcinogenic, and exposure to chromates can cause a range of health problems, including respiratory issues, skin irritation, and damage to the eyes and mucous membranes. Therefore, their use is regulated in many countries, and appropriate safety measures must be taken when handling them.

Titanium is not a medical term, but rather a chemical element (symbol Ti, atomic number 22) that is widely used in the medical field due to its unique properties. Medically, it is often referred to as a biocompatible material used in various medical applications such as:

1. Orthopedic implants: Titanium and its alloys are used for making joint replacements (hips, knees, shoulders), bone plates, screws, and rods due to their high strength-to-weight ratio, excellent corrosion resistance, and biocompatibility.
2. Dental implants: Titanium is also commonly used in dental applications like implants, crowns, and bridges because of its ability to osseointegrate, or fuse directly with bone tissue, providing a stable foundation for replacement teeth.
3. Cardiovascular devices: Titanium alloys are used in the construction of heart valves, pacemakers, and other cardiovascular implants due to their non-magnetic properties, which prevent interference with magnetic resonance imaging (MRI) scans.
4. Medical instruments: Due to its resistance to corrosion and high strength, titanium is used in the manufacturing of various medical instruments such as surgical tools, needles, and catheters.

In summary, Titanium is a chemical element with unique properties that make it an ideal material for various medical applications, including orthopedic and dental implants, cardiovascular devices, and medical instruments.

doi:10.1016/0022-5088(67)90188-9. Liao, P. K.; Spear, K. E. (June 1986). "The B−Cr (Boron-Chromium) system". Bulletin of Alloy ... Chromium(III) boride, also known as chromium monoboride (CrB), is an inorganic compound with the chemical formula CrB. It is ... conducts heat and electricity as well as many metallic alloys, and has a high melting point (~2100 °C). Unlike pure chromium, ... "Synthesis of Chromium Borides by Solid-State Reaction between Chromium Oxide (III) and Amorphous Boron Powders". Journal of the ...
Other materials are often added to the chromium/hydrogen mixture to produce chromium hydride alloy with desired properties. ... Titanium in chromium hydride make the β-chromium form of the chromium-hydrogen solution more stable.[citation needed] Bradley, ... As the hydrogen content moves beyond the line compound boundary, the chromium-hydrogen system ceases to behave as an alloy, and ... The hydrogen in typical chromium hydride alloys may contribute only a few hundred parts per million in weight at ambient ...
Synthesis of chromium carbide can be achieved through mechanical alloying. In this type of process metallic chromium and pure ... Undesired formation of chromium carbides in stainless steel and other alloys can lead to intergranular corrosion. Lide, David R ... and Cr23C6 forms of chromium carbide. Another method for the synthesis of chromium carbide utilizes chromium oxide, pure ... These properties make it useful as an additive to metal alloys. When chromium carbide crystals are integrated into the surface ...
"Thermochemistry of metal-rich chromium telluride and its role in fuel-clad chemical interactions". Journal of Alloys and ... Chromium telluride (Cr2Te3) is an inorganic chemical compound. It is composed of the chromium(III) cation and the telluride ... Chromium telluride is strongly paramagnetic, and it can be used in the construction of nanocrystals. In addition, the compound ... Chromium telluride samples that are highly saturated with tellurium were found to crystallize in a hexagonal structure, but ...
Broll, Sascha; Jeitschko, Wolfgang (November 1995). "The chromium phosphide carbide Cr8P6C". Journal of Alloys and Compounds. ... Journal of Alloys and Compounds. 630: 310-315. doi:10.1016/j.jallcom.2015.01.051. ...
Chromium and carbon can both improve elasticity. SVCM "Duro Metal Products & Indestro Manufacturing, Page 6". Alloy Artifacts. ... Chromium and vanadium both make the steel more suitable for hardening. Chromium also helps resist abrasion, oxidation, and ... is a group of steel alloys incorporating carbon (0.50%), manganese (0.70-0.90%), silicon (0.30%), chromium (0.80-1.10%), and ... Chromium-vanadium steel (symbol Cr-V or CrV; 6000-series SAE steel grades, often marketed as "chrome vanadium") ...
Stringer, J.; Wilcox, B. A.; Jaffee, R. I. (1972). "The high-temperature oxidation of nickel-20 wt.% chromium alloys containing ... As an alloy, thoriated tungsten metal is not easily deformed because the high-fusion material thoria augments the high- ... "The effect of yttrium and thorium on the oxidation behavior of Ni-Cr-Al alloys". Oxidation of Metals. 8 (4): 227-263. doi: ... typically contained in nuclear fuel rods clad with zirconium alloys. Thorium is not fissile (but is "fertile", breeding fissile ...
... is a wrought alloy with high zinc weight percentage. It also contains magnesium, silicon and chromium. 7475 alloy can not be ... It has high machinability.[citation needed] Shell casings Aircraft "Aluminum 7475 alloy". Archived from the original on 2021-01 ... "Mechanical properties of 7475 aluminum alloy sheets with fine subgrain structure by warm rolling". Transactions of Nonferrous ... "7475 alloys". Archived from the original on 2004-05-21. https://www.suppliersonline.com/propertypages/7475.asp https://www. ...
"Alloy Steel 6150 , Grade Summary". Metal Supermarkets. Retrieved 14 February 2023. "Chromium Vanadium Steel AISI 6150 - ... Chromium vanadium steel has a yield strength at 0.2% offset of 84.0 kilo-pound per square inch (KSI). Meaning, chromium- ... High-quality breaker bars are typically made of chromium-vanadium steel (AISI 6150). Chromium-vanadium steel is known for its ... In addition to its high yield strength, chromium-vanadium steel provides resistance to abrasion, oxidation, and corrosion ...
6150, a chromium-vanadium alloy. Similar to 4140, 6150 is a tough steel with high impact resistance. It can be hardened to the ... D2 is a high carbon, high chromium die steel and is the highest carbon alloy tool and die steel typically used in knife making ... "ASTM A213 T2 Alloy Steel, Chromium Molybdenum". matweb.com. "S1" (PDF). Archived from the original (PDF) on 2012-03-31. ... 302 is a Chromium-Nickel austenitic alloy used for blenders and mixers. 303 is an austenitic stainless steel specifically ...
Venkatraman, M.; Neumann, J. P. (1990). "The C-Cr (Carbon-Chromium) System". Bulletin of Alloy Phase Diagrams. 11 (2): 152-159 ... doi:10.1016/0022-5088(70)90175-x. Schmidt, F.A.; McMasters, O.D.; Lichtenberg, R.R. (1969). "The yttrium-bismuth alloy system ... Gschneidner, K. A.; Calderwood, F. W. (1986). "The As−Sc (Arsenic-Scandium) system". Bulletin of Alloy Phase Diagrams. 7 (4): ... Examples of bcc include iron, chromium, tungsten, and niobium. Examples of fcc include aluminium, copper, gold and silver. ...
Type 310 310S- is a highly alloyed austenitic stainless steel used for high temperature application. The high chromium and ... Carbon steels and alloy steels are designated a four digit number, whereby the first digit indicates the main alloying element( ... The SAE steel grades system is a standard alloy numbering system (SAE J1086 - Numbering Metals and Alloys) for steel grades ... "section 2, part A:Standard specification for chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure ...
... is a nickel alloy, mostly made up of nickel and chromium, with small amounts of aluminium, silicon, copper and ... Alloy 601 can also be identified by the UNS Number N06601. It shares similar properties to Alloy 600, but is more resistant to ... Articles with short description, Short description matches Wikidata, Nickel-chromium alloys). ... Singh, I.B. (2001-06-01). "Pitting Characteristics of Alloy 600 and Alloy 601 in a Chloride-Containing Acidic Environment". ...
Such metals are beryllium, chromium, magnesium, titanium, and some aluminium alloys. Fluxes for high-temperature soldering ... Magnesium alloys. A putative flux for soldering these alloys at low temperature is molten acetamide. Acetamide dissolves ... Aluminium and its alloys are difficult to solder due to the formation of the passivation layer of aluminium oxide. The flux has ... Fortunately some alloys are able to dissolve the surface oxides in their bulk when superheated by several degrees above their ...
Cobalt-chromium and titanium-based implant alloys are also permanently implanted. All of these are made passive by a thin layer ... Ibrahim, H.; Esfahani, S. N.; Poorganji, B.; Dean, D.; Elahinia, M. (January 2017). "Resorbable bone fixation alloys, forming, ... Journal of Alloys and Compounds. 714: 636-667. doi:10.1016/j.jallcom.2017.04.231. ISSN 0925-8388. Carpenter, R. Dana; ...
Industrial production of chromium proceeds from chromite ore (mostly FeCr2O4) to produce ferrochromium, an iron-chromium alloy ... Some other notable chromium(II) compounds include chromium(II) oxide CrO, and chromium(II) sulfate CrSO 4. Many chromium(II) ... A large number of chromium(III) compounds are known, such as chromium(III) nitrate, chromium(III) acetate, and chromium(III) ... Most chromium(I) compounds are obtained solely by oxidation of electron-rich, octahedral chromium(0) complexes. Other chromium( ...
Chromium alum is produced from chromate salts or from ferrochromium alloys. Concentrated aqueous solutions of potassium ... Chrome alum or Chromium(III) potassium sulfate is the potassium double sulfate of chromium. Its chemical formula is KCr(SO4)2 ...
Chromium is a highly reactive metal present in many iron alloys. Chromium may react with glass, reducing the silicon and ... Further reactions of chromium, forming chromium silicide dendrites, are possible. The thermal expansion coefficient of steel is ... The oxide layer formed on chromium-containing steel can seal vacuum tight to glass and the chromium strongly reacts with carbon ... These alloys can be directly sealed to glass, but then the oxidation is critical. Also, their low electrical conductivity is a ...
Case knives are made with blades usually stamped from domestic chromium-vanadium steel alloy or stainless steel, and hardened ... 154CM 154-CM is an American-made stainless alloy. It combines three principal elements: carbon, chromium, and molybdenum. Added ... Chrome vanadium (CV) Chrome vanadium is a special formula of alloyed cutlery steel known for its ease of re-sharpening. (CV ... BG42 (BG42) BG42 is a domestic alloy steel. It is an aeronautics bearing-grade composition with added carbon and vanadium. ...
Other alloying elements are mainly for solid solution strengthening including Silicon, Manganese, Chromium, Copper, and Nickel ... High-strength low-alloy steel (HSLA) is a type of alloy steel that provides better mechanical properties or greater resistance ... Below are some common micro-alloyed elements used to improve the mechanical properties. Effect of micro-alloyed elements: ... A common type of micro-alloyed steel is improved-formability HSLA. It has a yield strength up to 80,000 psi (550 MPa) but costs ...
2091 Aluminium has Chromium, copper, iron, lithium, magnesium as minor alloying elements. "2091 ALuminium alloy". Archived from ... Aluminium-copper alloys, All stub articles, Alloy stubs). ...
5052 is an aluminium-magnesium alloy, primarily alloyed with magnesium and chromium. 5052 is not a heat treatable aluminum ... The alloy composition of 5052 is: Magnesium - 2.2%-2.8% by weight Chromium - 0.15%-0.35% maximum Copper - 0.1% maximum Iron - ... Aluminium alloys, Aluminium-magnesium alloys, All stub articles, Alloy stubs). ... The exceptional corrosion resistance of 5052 alloy against seawater and salt spray makes it a primary candidate for the failure ...
Shape Memory alloys. When an object made of a shape-memory alloy is deformed under suitable conditions it can be made to return ... Impurity levels of 1-40 parts per million were achieved.: 13 Chromium with improved ductility. Uses of chromium as a high ... Aluminium-tin alloys for plain bearing shells. Fulmer's researchers applied to the aluminum-tin alloy system the fundamental ... He had been a pioneer in the use of light metal alloys in aero engines and, in the Second World War, he had an important role ...
The type of carbide that chromium forms depends on the amount of carbon and other types of alloying elements present. Tungsten ... Alloy steels are broken down into two groups: low alloy steels and high alloy steels. The difference between the two is ... refers to low-alloy steels. Strictly speaking, every steel is an alloy, but not all steels are called "alloy steels". The ... Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its ...
He worked on the thermodynamics of the oxidation of iron-chromium alloys. He is preparing a PhD thesis in Physical Sciences ( ...
... alloys are a range of cobalt-based alloys, with significant proportions of chromium (up to 33%) and tungsten (up to 18 ... Stellite is a range of cobalt-chromium alloys designed for wear resistance. The alloys may also contain tungsten or molybdenum ... and in the stellite alloys the carbon is primarily associated with the chromium to form hard chromium carbide particles which ... The alloys also tend to have extremely high melting points due to the cobalt and chromium content. Typical applications include ...
Similarly, dissolution of chrome alloys gives chromium sulfate together with ferrous sulfate.[citation needed] Basic chromium ... Other chromium(III) hydroxides have been reported. The most useful source of chromium(III) sulfate are the Cr(III) wastes from ... Three chromium(III) sulfates are well characterized: Anhydrous chromium(III) sulfate, Cr2(SO4)3, (CAS #10101-53-8) is a violet ... The hydrated salts of chromium sulfate can also be produced, albeit impure, by extraction of various other chromium compounds, ...
... (also known as NiCr, nickel-chromium or chromium-nickel) is a family of alloys of nickel and chromium (and ... Nickel-chromium alloys, Refractory metals, Firelighting using electricity, Nickel alloys, Electric heating). ... A common nichrome alloy is 80% nickel and 20% chromium by mass, but there are many other combinations of metals for various ... Nichrome alloys are known for their high mechanical strength and their high creep strength. The properties of nichrome vary ...
It was fabricated using a chromium-cobalt alloy powder. The propellants are kerosene and liquid oxygen. The engine produces ... a powder of the chromium-cobalt alloy is spread in a thin layer. Then computer-controlled laser fuses the powders into a cross ...
a high-chromium-alloy block and other premium features." An electric clock was standard. Starting for the 1952 model year, a ...
... Source ... The undoped Fe-12Cr alloy displays the development of α′-phase. The ferrito-martensitic steels doped with Mo, Nb, and V show ... We found that the phase composition of these steels and alloys under irradiation depends upon the concentration of solutes. ... Cr-containing steels and alloys to examine their structural phase variations after irradiation with 3-MeV Cr+3 ions across a ...
Alloy Testing Time, h N06007 120 N06022 24 N06030120 N06059 24 N06200 24 N06455 24 N06600 24 N06625120 N06686 24 N06985120 ... Significance and UseThe boiling ferric sulfate-sulfuric acid test may be applied to the following alloys in the wrought ... Standard Test Methods for Detecting Susceptibility to Intergranular Corrosion in Wrought, Nickel-Rich, Chromium-Bearing Alloys ... In the case of nickel-rich, chromium-bearing alloys, the test method may be applied to wrought and weldments of products. The ...
Buy nickel/chromium alloy tube, 1.3mm OD, 0.8mm ID, 0.25mm wall thickness from Goodfellow. 602 types of tube in stock, order ...
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... new alternative conversion processes are emerging such as treatments based on zirconium salt and chromium III. ... Touch-up application: solution containing chromium VI compared to chromium III. Currently, hexavalent chromium-based touch-up ... For series 2xxx and 7xxx alloys, however, conversion to trivalent chromium must be reinforced by a second post-treatment step. ... Many companies use a chromium conversion solution. The use of hexavalent chromium has been shown to be a very effective anchor ...
This Smart Chromium Alloy Resistive Fabric will protect you from the blistering cold by detecting if the temperature is too ... Summer time will be over soon (hopefully, thanks global warming), so its time to get out your coats and Smart Chromium Alloy ... Smart Chromium Alloy Resistive Fabric. Automatically warm your neck and listen to music in style! ... Now, whenever our relay is powered, the energy from the batteries will flow into our chromium wire. The other component on this ...
Improvements in alloy metallurgy, melting technology, and thermo-mechanical processing led to development of Alloy 31. ... The alloy 1925hMo, a "standard 6Mo alloy," is readily weldable with over-alloyed filler metals such as alloy 625, C-27 6, or 59 ... Table 3: Corrosion rate of various alloys in phosphoric acid in mm/year. Test media. Temp., ° C. Alloy 31. Alloy 926. Alloy 28 ... Alloy 31, known as the "advanced 6 Mo alloy" is the higher-chromium-and-nickel version, and imparts significantly improved ...
Job PK (4). All position, high strength chromium and nickel alloy.. $8.98. Part Number: 11117Add to Cart ... All position, high strength chromium and nickel alloy.. $65.38. Part Number: 11113Add to Cart ...
231-158-0) and chromium (Cr, CAS no. 7440-47-3, EC/List no. 231-157-5) hold an important place. In 1907, the first Co-Cr alloys ... De Aguiar, S.R.M.M.; Nicolai, M.; Almeida, M.; Gomes, A. Electrochemical behaviour of a cobalt-chromium-molybdenum dental alloy ... Kettelarij, J.A.B.; Lidén, C.; Axén, E.; Julander, A. Cobalt, nickel and chromium release from dental tools and alloys. Contact ... Vaicelyte, A.; Janssen, C.; Le Borgne, M.; Grosgogeat, B. Toxicological risks of the cobalt-Chromium alloys used in dentistry: ...
Manufacturer of Nickel Chromium Alloy. Unparalleled quality of customer support and service for all customer requirements. Best ... Nickel-chromium alloy synonyms. Nichrome, 12605-70-8, nickel-chromium, chromium-nickel,nickel chrome,. Ni-Cr, NiCr, Cr-Ni, CrNi ... Nickel-chromium alloy synonyms. Nichrome, 12605-70-8, nickel-chromium, chromium-nickel,nickel chrome,. Ni-Cr, NiCr, Cr-Ni, CrNi ... Nickel Chromium Alloy Nickel-chromium alloys are valued for their high corrosion resistance, high-temperature strength and high ...
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Chromium cobalt alloy is a metal alloy of cobalt and chromium. These are combined with chromium and molybdenum to increase the ... Cobalt Chromium Molybdenum Alloy Round Rod Introduction Cobalt Chromium Molybdenum Alloy Round Rod is an alloy with cobalt as ... It contains a considerable amount of chromium, molybdenum and a small amount of nickel, carbon and other alloying elements, and ... this is totally Non-magnetic, corrosion-resistant cobalt alloy. Cobalt-chromium has very high specific strength and is commonly ...
Titanium Aluminium Chromium Alloy Lab & Bulk Quantity Manufacturer. Properties, Chemical Structure Drawing, Purity, Price, GHS ... Titanium Aluminium Chromium Alloy. Name: Titanium Aluminium Chromium Alloy. CAS: n/a. EC Number: n/a. Chemical Formular: AlCrTi ... The metal chromium, which is the chromium(0) form, is used for making steel. Chromium(VI) and chromium(III) are used for chrome ... The most common forms are chromium(0), chromium(III), and chromium(VI).. No taste or odor is associated with chromium compounds ...
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This specification covers an aluminum alloy in the form of sheet and plate. ... ALUMINUM ALLOY SHEET AND STRIP Magnesium Chromium (52S-0) AMS4015A ALUMINUM ALLOY SHEET AND STRIP Magnesium Chromium (52S-0) ...
Whelan, Richard James 1910-2000, "The electrodeposition of chromium-nickel alloys." (1932). Electronic Theses and Dissertations ...
Cobalt Chromium Tungsten Alloy, Hubei Fotma Machinery Co. Ltd. ... Cobalt Chromium Tungsten Alloy. Views: 9 Author: Site Editor ... The Stellite alloy was originally a cobalt-chromium binary alloy, and later developed into a cobalt-chromium-tungsten ternary ... Cobalt-chromium-tungsten alloy (CoCrW) is one of the Stellite alloys, which is a cemented carbide that is resistant to various ... Cobalt-chromium-tungsten alloy is mainly composed of cobalt, containing a considerable amount of chromium, tungsten and a small ...
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Cobalt Chromium Molybdenum Alloy in Medical Application. Cobalt chromium molybdenum alloy is a cobalt-based alloy composed of ... Tags:Co-Cr-Mo alloy in Medical Application, Cobalt Chromium Molybdenum Alloy, Cobalt Chromium Molybdenum Alloy in Medical ... Co-Cr-Mo alloy is not easy to break and bend. Cobalt chromium molybdenum material is ahead of titanium alloy and other ... Cobalt-chromium-molybdenum alloy (CoCrMo) is one of the cobalt-based alloys that are resistant to wear, corrosion, and heat. ...
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This alloys main feature is the absence of beryllium, an element generally added to nickel alloys to diminish the alloys ... Currently, the most used alloys for metal-ceramic crowns are nickel-based alloys 20,26. Nickel alloys were introduced into ... Some authors, in another study in which they examined the microstructure of the dental nickel-chromium alloys Cast-V (14% Cr; ... with a chemical composition similar to this studys alloy), found a matrix rich in nickel and chromium, in addition to a second ...
Determination of chromium content - Flame atomic absorption spectrometric method ... Aluminium and aluminium alloys. Determination of chromium content. Flame atomic absorption spectrometric method. Status : ... The method is applicable to products having chromium contents between 0,003 and 0,6 % (m/m). It may also be used for higher ... chromium contents Äup to 1,5 % (m/m) for instanceÜ. Specifies principle, reagents, apparatus, sampling, procedure, expression ...
Characteristics of L605 Alloy Wire in High-Temperature Environments 2023-11-25 ... Applications of Alloy Inconel 718 Wire in Different Industries 2023-11-29 ... ERNiFeCr-2 (UNS N07718) / Nickel Alloy 718 Filler Metal /Inconel 718 welding wire / AWS A5.14 / Inconel 718 Tig Rod ... Thermal spraying offers the option of applying a range of coating materials, such as ceramics, metals, alloys, cermet, carbides ...
Determination of chromium - Spectrophotometric method using diphenylcarbazide, after extraction ... Aluminium and aluminium alloys. Determination of chromium. Spectrophotometric method using diphenylcarbazide, after extraction ... The method is applicable to chromium contents between 0,002 and 0,60 % (m/m). It may be extended to chromium contents of up to ...
  • Cronifer 1925hMo (UNS N 08926) was derived from the 904L alloy and Nicrofer 3127hMo (UNS N 08031) was derived from alloy 28 metallurgy, by increasing the molybdenum content to 6.5% and fortifying the composition with 0.2% nitrogen. (australwright.com.au)
  • lt has half the nickel content of alloy 625, with lower amounts of molybdenum. (australwright.com.au)
  • The chromium and molybdenum levels are the highest possible to still be consistent with a fully austenitic alloy. (australwright.com.au)
  • In 1907, the first Co-Cr alloys were designed as Co-Cr-W and Co-Cr-Mo alloys (W = tungsten and Mo = molybdenum) [ 1 ] and in the 1930s they began to be used for the preparation of removable partial denture (RPD) frameworks [ 2 ] . (encyclopedia.pub)
  • Alloy 20 is a nickel-chromium-molybdenum stainless steel alloy great for applications involving sulfuric acid. (fastenersolutions.com)
  • Cobalt Chromium Molybdenum Alloy Round Rod Introduction Cobalt Chromium Molybdenum Alloy Round Rod is an alloy with cobalt as the main component. (matmetals.com)
  • It contains a considerable amount of chromium, molybdenum and a small amount of nickel, carbon and other alloying elements, and occasionally contains iron. (matmetals.com)
  • These are combined with chromium and molybdenum to increase the metal's corrosion resistance.Stellite is a family of cobalt-chromium alloys designed for wear resistance. (matmetals.com)
  • Cobalt-chromium-tungsten alloy is mainly composed of cobalt, containing a considerable amount of chromium, tungsten and a small amount of nickel, molybdenum, silicon, carbon, niobium, tantalum and other alloying elements, and occasionally also contains iron. (tungstenchina.com)
  • Alloy C276 is a Nickel-chromium-molybdenum wrought alloy that is considered the most versatile corrosion resistant alloy available. (bobmartinco.com)
  • Cobalt chromium molybdenum alloy is a cobalt-based alloy composed of cobalt, chromium, and molybdenum. (molybdenum42.com)
  • Cobalt-chromium-molybdenum alloys have smaller magnetic field attraction than titanium alloys and other metals in the MRI environment, and generate less heat. (molybdenum42.com)
  • Not only that, the artifacts produced by cobalt-chromium-molybdenum alloy implants in MRI examination can be further reduced by selecting appropriate scanning sequences and parameters, and good images can be obtained. (molybdenum42.com)
  • Cobalt chromium molybdenum material is ahead of titanium alloy and other materials in terms of strength and stiffness. (molybdenum42.com)
  • Cobalt-chromium-molybdenum alloy (CoCrMo) is one of the cobalt-based alloys that are resistant to wear, corrosion, and heat. (molybdenum42.com)
  • Just like when titanium alloy replaced stainless steel, it is believed that cobalt chromium molybdenum may be popularized or replace titanium alloy in the near future. (molybdenum42.com)
  • If you are interested in cobalt chromium molybdenum alloy materials, welcome to visit our website for more information. (molybdenum42.com)
  • Molybdenum, vanadium, aluminum, chromium and iron master alloy is supplied in Stanford Advanced Materials. (samaterials.com)
  • Much critical molybdenum-containing titanium alloys are used in jet engine parts in addition to medical implants, electrical contacts, and industrial motors and filaments. (samaterials.com)
  • EDS tests showed that the matrix is rich in nickel and chromium, the interdendritic second phase is rich in molybdenum and the precipitates in titanium or silicon. (bvsalud.org)
  • TZM alloy is more stable than pure Molybdenum at higher temperatures, while its mechanical properties can be better than that of pure molybdenum. (it-chuiko.com)
  • Molybdenum and Metal Alloy Boats: Content: Ti: 0.4-0.55% Zr: 0.06-0.12% Mo Balance Molybdenum boats are widely used in high-temperature furnaces. (it-chuiko.com)
  • Besides alpha-phase stabilisers, near-alpha alloys are alloyed with 1-2% of beta phase stabilizers such as molybdenum , silicon or vanadium. (wikipedia.org)
  • Beta and near beta alloys, which are metastable and which contain sufficient beta stabilisers (such as molybdenum, silicon and vanadium) to allow them to maintain the beta phase when quenched , and which can also be solution treated and aged to improve strength. (wikipedia.org)
  • Data are given for the concentrations of iron oxide, nickel (7440020), chromium, manganese (7439965), and molybdenum (7439987) in the air. (cdc.gov)
  • The alloy 1925hMo, a "standard 6Mo alloy," is readily weldable with over-alloyed filler metals such as alloy 625, C-27 6, or 59. (australwright.com.au)
  • The use of metals and, therefore, dental alloys has been highly regulated by directives and regulations. (encyclopedia.pub)
  • Co-Cr dental alloys consist of Co, Cr and also other metals (e.g., gallium (Ga), iron (Fe), Mo, nickel (Ni), ruthenium (Ru), W). In Table 1 , some Co-Cr alloys actually used are listed, but only those used in the field of dentistry. (encyclopedia.pub)
  • These multi-metal alloys are nevertheless called "Co-Cr" because of the very high proportion of these two metals inside alloys. (encyclopedia.pub)
  • Danyang Bosheng Alloys Material Factory Co.,ltd is a main developer and manufacturer of wrought nickel alloys and nickel based welding wires for joining nickel alloys, high performance steels, cast irons and dissimilar metals as well as overlaying on steel for corrosion or erosion protection. (dyresistancewire.com)
  • The extensive use in modern times of metallic alloys is related to the availability and success at the beginning of the 20th century of several different alloys made of the noble metals. (medscape.com)
  • All Metals & Forge Group is an ISO 9001:2015 and AS9100D manufacturer of custom and standard open die forgings and seamless rolled rings in carbon steel, alloy steel, stainless steel, tool steel, nickel alloys, cobalt, aluminum, copper, and titanium. (ctidirectory.com)
  • Today however, its toxicity has been highlighted and new processes are emerging, such as treatments based on zirconium salt and trivalent chromium. (socomore.com)
  • The TCP solutions have the same basis: zirconium salt and trivalent chromium. (socomore.com)
  • The alloys developed later, such as Mar-M509 alloy, are produced by vacuum smelting and vacuum casting because they contain more active elements such as zirconium and boron. (tungstenchina.com)
  • Among these alloys, Chromium Zirconium Copper stands out for its unique combination of properties. (jtcopper.com)
  • In this blog post, we will compare Chromium Zirconium Copper to other copper alloys, exploring their respective strengths and limitations. (jtcopper.com)
  • By understanding these differences, we can better appreciate the suitability of Chromium Zirconium Copper for specific applications. (jtcopper.com)
  • The addition of chromium and zirconium improves the alloy's hardness and mechanical properties. (jtcopper.com)
  • While pure copper is relatively soft, Chromium Zirconium Copper provides better durability and longevity, making it suitable for applications where mechanical stress and wear are significant factors. (jtcopper.com)
  • However, Chromium Zirconium Copper can offer similar or even better corrosion resistance while maintaining comparable electrical conductivity. (jtcopper.com)
  • Unlike beryllium copper, which poses health and safety concerns due to beryllium's toxicity, Chromium Zirconium Copper is a safer alternative without compromising on essential properties. (jtcopper.com)
  • However, when it comes to heat resistance and stability at elevated temperatures, Chromium Zirconium Copper outperforms phosphor bronze. (jtcopper.com)
  • Chromium Zirconium Copper can withstand higher temperatures without significant loss of mechanical properties, making it suitable for applications in demanding thermal environments. (jtcopper.com)
  • However, Chromium Zirconium Copper offers superior corrosion resistance, making it more suitable for applications where exposure to moisture or corrosive environments is a concern. (jtcopper.com)
  • Additionally, while brass is easily machinable, Chromium Zirconium Copper maintains good machinability while offering enhanced mechanical properties. (jtcopper.com)
  • Chromium Zirconium Copper, although not as corrosion-resistant as copper-nickel alloys, still exhibits good resistance to various corrosive agents. (jtcopper.com)
  • Chromium Zirconium Copper possesses unique strengths that distinguish it from other copper alloys. (jtcopper.com)
  • When compared to brass, Chromium Zirconium Copper exhibits superior corrosion resistance while maintaining good machinability. (jtcopper.com)
  • The electrical and thermal conductivity of aluminum can be improved by the addition of trace amounts of boron to eliminate the undesirable effects of chromium, titanium, vanadium and zirconium. (matweb.com)
  • An advanced super-austenitic, high-chromium 6 M0 alloy called alloy 31 (UNS N08031) bridges the cost / performance gap between high-performance N i-Cr-Mo alloys and the 300 series stainless steels. (australwright.com.au)
  • Alloy 20 is not a stainless steel but a nickel alloy (ASTM). (fastenersolutions.com)
  • This type of alloy replaced stainless steel for certain uses, as stainless steel had dominated orthodontics since the 1960s. (wikipedia.org)
  • Stainless steel Charnley stem (left) and a cobalt-chromium Mueller (right). (medscape.com)
  • We provide various stainless steel bars and various metal products including carbon alloy, aluminum, nickel alloys, carbon and stainless steel available here. (ctidirectory.com)
  • and stainless steel represent the bulk of the market for chromium. (cdc.gov)
  • Chromium is widely used in manufacturing processes to make various metal alloys such as stainless steel. (cdc.gov)
  • Fumes from the welding of stainless-steel and other alloys contain nickel compounds and chromium[VI] and [III]. (who.int)
  • The anodizing process during aluminum processing produces a porous oxide layer on top of the aluminum alloy. (socomore.com)
  • The anodized aluminum alloy is immersed in a sealing solution, which can be either hot water or a chemical solution. (socomore.com)
  • It should be noted that there are several types of aluminum alloy. (socomore.com)
  • We have rich experience and knowledge in the manufacturing of vanadium alloys. (samaterials.com)
  • Vanadium is an important alloying element for the titanium industry that makes titanium alloy stronger than commercially pure titanium without changing other properties like thermal properties and stiffness. (samaterials.com)
  • Although "commercially pure" titanium has acceptable mechanical properties and has been used for orthopedic and dental implants , for most applications titanium is alloyed with small amounts of aluminium and vanadium , typically 6% and 4% respectively, by weight. (wikipedia.org)
  • The resulting titanium alloy can have a higher strength-to-weight ratio, and corrosion resistance. (samaterials.com)
  • Grupp et al reported their experience regarding failed modular titanium neck adapters, in combination with a titanium alloy modular short hip stem, after hip arthroplasty, as a result of fretting or corrosion. (medscape.com)
  • The authors noted that by the end of 2008, 1.4% (68/~5000) of the implanted titanium alloy neck adapters failed at an average of 2 years (range, 0.7-4.0) postoperatively. (medscape.com)
  • Grupp et al concluded that failure of modular titanium alloy neck adapters can be initiated by surface micromotions due to surface contamination or highly loaded implant components. (medscape.com)
  • Most internal fixation systems use titanium or a titanium alloy. (medscape.com)
  • this is totally Non-magnetic, corrosion-resistant cobalt alloy. (matmetals.com)
  • While not as corrosion-resistant as copper-nickel alloys, it still offers a favorable combination of properties. (jtcopper.com)
  • December 28, 2016 Monel is a group of nickel alloys, primarily composed of nickel (up to 67%) and opper, with small amounts of iron, manganese, carbon, and silicon. (alloywirecable.com)
  • Exposure to manganese dust occurs primarily in mining, ore-crushing, and metallurgical operations for iron, steel, ferrous and nonferrous alloys. (cdc.gov)
  • The success of Co-Cr alloys is mainly due to mechanical properties such as stiffness, strength and corrosion resistance, which are regarded as excellent [ 2 ] . (encyclopedia.pub)
  • One particular feature of Co-Cr-Mo alloy is that it exhibits a balance between biocompatibility and mechanical properties. (molybdenum42.com)
  • This study aimed to determine the microstructural and mechanical properties of a nickel- based alloy, after the casting process. (bvsalud.org)
  • Copper alloys are widely used in various industries due to their excellent conductivity, corrosion resistance, and mechanical properties. (jtcopper.com)
  • Alloys that provide for a long-term stable implant need to have a high level of corrosion resistance as well as certain mechanical properties (see Immune Response to Implants ). (medscape.com)
  • Alloy 600 can operate from cryogenic temperatures to 700°F (370°C). Alloy 600 Oxide is heated to produce a dark gray or black color. (bobmartinco.com)
  • Master alloys containing beryllium are added to aluminum magnesium melts at low levels to reduce magnesium losses. (matweb.com)
  • Magnesium and its alloys have been the subject of interest and appear promising as biodegradable implant materials, though their fast corrosion rate in biologic environments has limited their clinical application. (medscape.com)
  • Once you have secured your chromium wire, test it out with your batteries. (hackster.io)
  • Now, whenever our relay is powered, the energy from the batteries will flow into our chromium wire. (hackster.io)
  • Nichrome (also known as NiCr, nickel-chromium or chromium-nickel)is a family of alloys of nickel, chromium and iron (and possibly other elements) commonly used as resistance wire, heating elements in toasters, kettles and space heaters, etc., some dental restorations (fillings) and several other applications. (hgsteelproducts.com)
  • According to the different components in the alloy, they can be made into welding wire, powder used for hard surface surfacing, thermal spraying, spray welding and other processes, and can also be made into castings and forgings and powder metallurgy parts. (tungstenchina.com)
  • OHMALLOY can provie me only 1kg Kovar alloy wire 1.0mm with short time, that is really amazing. (fecralalloy.com)
  • Nichrome alloys are typically used in resistance wire. (alloywirecable.com)
  • OHMALLOY can provide the nichrome alloy in the form of flat wire, round wire. (alloywirecable.com)
  • Journal of Alloys and Compounds. (wikipedia.org)
  • The data presented in Table 5-1 are for chromium metal and the data from Table 5-2 are for all chromium compounds. (cdc.gov)
  • The major manufacturers of chromium compounds in 2007 are summarized in Table 5-3 (SRI 2007). (cdc.gov)
  • Chromium is a naturally-occurring element found in rocks, animals, plants, and soil, where it exists in combination with other elements to form various compounds. (cdc.gov)
  • Abstract In this study, the abrasive wear performance of different heat-treated boron alloyed high chromium cast iron ore grinding balls was examined. (nalesnikarniacynamon.pl)
  • Boron also provides an effective grain refiner for aluminum silicon alloys. (matweb.com)
  • During the 20th century, the history of dentistry has intimately been linked with metal alloys and those using cobalt (Co, CAS no. 7440-48-4, EC/List no. 231-158-0) and chromium (Cr, CAS no. 7440-47-3, EC/List no. 231-157-5) hold an important place. (encyclopedia.pub)
  • Metal alloys have been used since ancient times for tooth reconstructions. (bvsalud.org)
  • Bulletin of Alloy Phase Diagrams. (wikipedia.org)
  • This article is a compilation of ternary alloy phase diagrams for which chromium (Cr) is the first-named element in the ternary system. (asminternational.org)
  • In the case of nickel-rich, chromium-bearing alloys, the test method may be applied to wrought and weldments of products. (astm.org)
  • We found that the phase composition of these steels and alloys under irradiation depends upon the concentration of solutes. (astm.org)
  • The uniform corrosion rate obtained by this test method, which is a function of minor variations in alloy composition, may easily mask the intergranular corrosion components of the overall corrosion rate on alloys N10276, N06022, N06059, and N06455. (astm.org)
  • Table 1 shows the basic chemical composition of Alloy 31 compared with other alloys that mitigate aqueous corrosion. (australwright.com.au)
  • The Stellite alloy was originally a cobalt-chromium binary alloy, and later developed into a cobalt-chromium-tungsten ternary composition. (tungstenchina.com)
  • It can be seen from the alloy composition that the cobalt content and tungsten content of the alloy are very high, so that the material has excellent high temperature performance and poor thermal conductivity. (tungstenchina.com)
  • The mechanical response of the films with alternating layers of Cu and Cr with sub-100 nm interlayer thicknesses and alloyed films of the same average composition was compared to determine the role of the interfaces on deformation. (alemnis.com)
  • Cobalt-chromium-tungsten alloy (CoCrW) is one of the Stellite alloys, which is a cemented carbide that is resistant to various types of wear and corrosion, as well as high-temperature oxidation. (tungstenchina.com)
  • It is these characteristics that make cobalt-chromium-tungsten alloy sparks dark red during grinding, and the number of sparks is very small. (tungstenchina.com)
  • Cobalt-chromium-tungsten alloys are widely used in locomotive diesel engines, nuclear power plant valves, marine diesel engines and various aircraft. (tungstenchina.com)
  • Early cobalt-chromium-tungsten alloys were produced by non-vacuum smelting and casting processes. (tungstenchina.com)
  • Generally, cobalt-chromium-tungsten alloy lacks a coherent strengthening phase. (tungstenchina.com)
  • Cobalt base alloy powderCobalt base alloys typically contain tungsten and carbon for strengthening. (lwpowder.com)
  • Ni80Cr20 is a nickel-chromium alloy (NiCr alloy) characterized by high resistivity, good oxidation resistance and very good form stability. (thermoalloy.cn)
  • Inconel® Alloy 600 is a nickel-chromium alloy with excellent carburization and good oxidation resistance. (bobmartinco.com)
  • Product information: Medium-chromium alloy casting and forging refers to castings with a chromium content of less than 10% and greater than 3%, and the lattice types of eutectic carbides are (Fe, Cr) 7C3 and (Fe, Cr) 3C. (ngxinma.com)
  • Environmental measurements in the breathing zone of welders and employee interviews and urinalysis for fluorides indicate that no actual health hazard exists from exposure to welding exhaust gases at a foundry facility producing corrosion and heat-resistant high alloy castings. (cdc.gov)
  • Cobalt-chromium has very high specific strength and is commonly used in gas turbines, dental implants, and orthopedic implants. (matmetals.com)
  • Clinical studies have demonstrated that such metallic alloys can be used safely and effectively in the manufacturing of orthopedic implants that are left in vivo for extended periods. (medscape.com)
  • Cobalt poisoning can also occur from the wear and tear of some cobalt/chromium metal-on-metal hip implants. (medlineplus.gov)
  • These hard phases have a strengthening effect, making such alloys maintain high hardness and strength at temperatures under 800°C. The cobalt-chromium-tung- sten-carbon alloys generallyhave excellent properties to resist high temperature wear, oxidation and thermal fatigue Cobalt has a hexagonal-close-packed (hcp) crystal structure at temperatures below 417°C. Intrinsically, it has low coefficient of friction resulting in excellent wear resistance. (lwpowder.com)
  • Chromium metal is commercially produced in the United States by the reduction of chromite ore with carbon, aluminum, or silicon, and subsequent purification. (cdc.gov)
  • Alloy 20 resists chloride ion corrosion and its copper content protects it from sulfuric acid. (fastenersolutions.com)
  • Ratios of pt:pt+pd are proportional to chromium content in the associated chromian spinels. (cdc.gov)
  • The use of Aluminum Strontium to modify the silicon phase of hypoeutectic aluminum silicon casting alloys from coarse platelets to a fine fibrous structure is a widely accepted practice. (matweb.com)
  • Although the medium-temperature strength is low (only 50-75% of nickel-based alloys), it has high strength, good thermal fatigue resistance and thermal corrosion resistance when it is higher than 980 °C. and anti-corrosion performance, and has good weldability. (tungstenchina.com)
  • Currently, the most used alloys for metal-ceramic crowns are nickel-based alloys 20,26 . (bvsalud.org)
  • It offers industry a wide range of nickel based welding consumables, supported by over 20 years experience in nickel alloy technology. (dyresistancewire.com)
  • December 28, 2016 FeCrAl Resistance Alloy belongs to electric heating alloy.FeCrAl alloy contains a large number of chromium and aluminum elements.It has excellent high temperature oxidation resistance, its temperature. (alloywirecable.com)
  • Fastener Solutions carries a wide range of products that are constructed from advanced quality Alloy 20. (fastenersolutions.com)
  • The method is applicable to products having chromium contents between 0,003 and 0,6 % (m/m). (iso.org)
  • Chromium can be found in air, soil, and water after release from industries that use chromium, such as industries involved in electroplating, leather tanning, textile production, and the manufacture of chromium-based products. (cdc.gov)
  • Elements used in this alloy are one or more of the following other than titanium in varying amounts. (wikipedia.org)
  • Tables 5-1 and 5-2 list the facilities in each state that manufacture or process chromium, the intended use, and the range of maximum amounts of chromium that are stored on site. (cdc.gov)
  • Small amounts of chromium(III) are needed for human health. (cdc.gov)
  • the impact resistance of high-chromium white cast iron is greatly affected by heat treatment. (nalesnikarniacynamon.pl)
  • The heat treatment process of high chromium cast iron grinding ball includes wind quenching, oil quenching, and special quenching solution treatment. (nalesnikarniacynamon.pl)
  • These cast iron grades are alloyed with 12 to 39% Cr at temperatures up to 1040 Cforscalingresistance. (nalesnikarniacynamon.pl)
  • Microstructures of high-chromium white iron compositions. (nalesnikarniacynamon.pl)
  • Cast grinding balls are solidified in high chromium cast iron to form (CR, Fe)7C3 type carbides, which are discontinuous in the structure, so they have much better toughness than ordinary white iron. (nalesnikarniacynamon.pl)
  • Nichrome generally refers to any alloy of nickel, chromium, and often iron and/or other elements or substances. (alloywirecable.com)
  • It is suitable for use at temperatures up to 1200 ° C,and hold a superior service life compared to Iron chromium alumium alloys. (thermoalloy.cn)
  • The studies involved diffraction electron microscopy and X-ray microanalysis on the 10 to 13 wt% Cr-containing steels and alloys to examine their structural phase variations after irradiation with 3-MeV Cr +3 ions across a wide range of irradiation doses and temperatures (1 to 150 dpa, 270 to 630°C). (astm.org)
  • Alpha alloys which contain neutral alloying elements (such as tin ) and/ or alpha stabilisers (such as aluminium or oxygen ) only. (wikipedia.org)
  • A high conductivity chromium copper alloy that obtains its optimum properties from a combination of both heat treatment and cold work. (mastersourceco.com)
  • Phosphor bronze is another popular copper alloy, known for its excellent spring properties and resistance to fatigue. (jtcopper.com)
  • Composite stems combine the physical properties of alloys with those of other biomaterials. (medscape.com)
  • By combining several metallic elements in alloys, improved properties can be achieved beyond those of a single element. (medscape.com)
  • A potential health hazard is considered to exist from exposure to welding fumes, especially of alloys containing a high percentage of chromium (7440473) and nickel. (cdc.gov)
  • OHMALLOY provide real good service in alloy service and can always help me in finding the correct resistance alloy. (fecralalloy.com)
  • Like many other transition metal borides, it is extremely hard (21-23 GPa), has high strength (690 MPa bending strength), conducts heat and electricity as well as many metallic alloys, and has a high melting point (~2100 °C). Unlike pure chromium, CrB is known to be a paramagnetic, with a magnetic susceptibility that is only weakly dependent on temperature. (wikipedia.org)
  • Metallic alloys. (medscape.com)
  • Specimens cemented to core resin cement and composite resin substrates showed predominantly radial cracks, while those cemented to nickel chromium alloy had predominantly cone cracks. (bvsalud.org)
  • Abstract The yield strengths and deformation mechanisms of Cu-Cr nanolayered and alloyed thin films were studied by microcompression testing at elevated temperatures. (alemnis.com)
  • Higher resistance to plastic flow at elevated temperatures was exhibited by the nanolayered films with smaller interlayer thickness among the layered films, while the alloyed film revealed an anomalous increase in strength with temperature exhibiting a deformation mechanism similar to the pure Cr film. (alemnis.com)
  • Such alloys have very high tensile strength and toughness (even at extreme temperatures). (wikipedia.org)
  • Some of the beta titanium alloys can convert to hard and brittle hexagonal omega-titanium at cryogenic temperatures [6] or under influence of ionizing radiation. (wikipedia.org)
  • Alloy 31 has excellent resistance to localized corrosion in halide media, both pitting and crevice corrosion. (australwright.com.au)
  • Alloy C-276 has excellent resistance to a wide variety of chemical environments. (bobmartinco.com)
  • This alloy achieves good hardness and electrical conductivity though a combination of heat-treatment and cold work. (mastersourceco.com)
  • Gold-based alloys have showed a long-term successful history for dental restorations and have been considered as gold standard 1,19 . (bvsalud.org)
  • This knowledge led to a class of alloys that were very cost effective and provided corrosion resistance that in many cases approached or equaled the corrosion resistance of more expensive high Ni-Cr-Mo alloys in many environments. (australwright.com.au)
  • Copper-nickel alloys, such as Cu-Ni 90/10 and Cu-Ni 70/30, are renowned for their exceptional corrosion resistance, especially in marine environments. (jtcopper.com)
  • Chromium is occasionally detected in groundwater, drinking water, or soil samples. (cdc.gov)
  • Chromium(III) boride, also known as chromium monoboride (CrB), is an inorganic compound with the chemical formula CrB. (wikipedia.org)
  • Titanium alloys are alloys that contain a mixture of titanium and other chemical elements . (wikipedia.org)