Chromium Alloys
Chromium
Alloys
Gold Alloys
Metal Ceramic Alloys
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.
Chromium(III) boride
Chromium hydride
Chromium(II) carbide
Chromium(III) telluride
Phosphide carbide
Chromium-vanadium steel
Thorium dioxide
7475 aluminium alloy
Breaker bar
List of blade materials
Cubic crystal system
SAE steel grades
Alloy 601
Flux (metallurgy)
Implant (medicine)
Chromium
Chrome alum
Glass-to-metal seal
W. R. Case & Sons Cutlery Co.
High-strength low-alloy steel
2091 aluminium alloy
5052 aluminium alloy
Fulmer Research Institute
Alloy steel
Yves Jeannin
Stellite
Chromium(III) sulfate
Nichrome
TRI-D (rocket engine)
Hudson Hornet
Radiation Damage Studies of the 10 to 13% Chromium-Containing Steels and Alloys Irradiated with Heavy Ions
G28 Standard Test Methods for Detecting Susceptibility to Intergranular Corrosion in Wrought, Nickel-Rich, Chromium-Bearing...
Nickel/Chromium Alloy Tube 0.8mm ID 1.3mm OD | Goodfellow
Nickel/Chromium Alloy Foil 0.1mm thick annealed 0.8mm coil W
Conversion to trivalent chromium in the surface treatment of aluminum alloys
Smart Chromium Alloy Resistive Fabric - Hackster.io
E308L-16 Stainless Steel Electrode 3/32 in. - 1 lb. - All-Position, High Strength Chromium and Nickel Alloy - Shark Industries
Cobalt-Chromium Dental Alloys | Encyclopedia MDPI
Nickel Chromium Alloy Supplier - Nickel Chrome Alloys
Intermediate strength alloys for high temperature service in liquid-salt cooled energy systems (Patent) | DOE Patents
Chromium Carbide Powders - Chromium Carbide Thermal Spray Powders | Astro Alloys Inc.
CORROSION MECHANISMS OF HIGH CHROMIUM ALLOYS IN CARBURIZING ENVIRONMENTS.<...
Titanium Aluminium Chromium Alloy AlCrTi - Elements China
Compare Chromium 33 to Lead Alloy :: MakeItFrom.com
Chromium Copper Alloy C18200 | RWMA Class 2 | CrCu
Cobalt Chromium Tungsten Alloy - Hubei Fotma Machinery Co. Ltd.
Alloy C276 Welding Wire, Nickel-chromium-molybdenum Alloy Wire
AMS4015A: Aluminum Alloy, Sheet and Plate 2.5Mg - 0.25Cr (5052-0) Annealed - SAE International
"The electrodeposition of chromium-nickel alloys." by Richard James Whelan 1910-2000
high chromium alloyed cast grinding ball for iron ore
Cobalt Chromium Molybdenum Alloy in Medical Application - Refractory Molybdenum
Iron chromium aluminum round wire-JIANGSU BROTHER ALLOY CO., LTD
AMSQQA200/5B: Aluminum Alloy 5086, Bar, Rod, Shapes, Tube, and Wire, Extruded - SAE International
Machine Learning in Catalysis
Molybdenum, Vanadium, Aluminum, Chromium and Iron Master Alloy | Stanford Advanced Materials
NiCr 80/20 Thermal Spray Wire High Purity Nickel Chromium Wire - Nickel & Cobalt Alloys Products - Hanqing
ISO 3978:1976 - Aluminium and aluminium alloys - Determination of chromium - Spectrophotometric method using diphenylcarbazide,...
Nickel Chromium Alloy Strip Ni80Cr20 Electric Heating Resistance Strip For Resistor / Furnace
600 Oxide Safety Wire, Nickel Chromium Alloy Safety Wire, Bob Martin Co
Molybdenum19
- 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-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)
Manganese2
- 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)
- ISO 7530-1:2015 describes flame atomic absorption spectrometric methods for the determination of cobalt, chromium, copper, iron, and manganese in nickel alloys which can be dissolved in the nitric-hydrochloric acids mixture specified. (iso.org)
Zirconium18
- 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)
Aluminum alloys2
- In the aviation industry, aircraft parts made of aluminum alloys, the main material of the aircraft, must undergo a surface treatment before painting. (socomore.com)
- With the use of master alloys containing special addition agents, many characteristics can be imparted to aluminum alloys. (matweb.com)
Metals4
- 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)
- 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)
Cobalt-based alloys1
- The so-called cobalt-based alloys. (tungstenchina.com)
Titanium alloy6
- 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)
- 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)
Stainless6
- 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)
- 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)
Oxide2
- The anodizing process during aluminum processing produces a porous oxide layer on top of the aluminum alloy. (socomore.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)
Wire8
- 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)
- This specification covers the specific requirements for aluminum alloy 5086 bar, rod, shapes, tube, and wire produced by extrusion. (sae.org)
- 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)
Magnesium2
- 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)
Compounds4
- 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)
Vanadium2
- We have rich experience and knowledge in the manufacturing of vanadium alloys. (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)
Boron2
- 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)
Resistance alloy3
- Fe-Cr-Al resistance alloy has the characteristics of high resistivity, small temperature coefficient of resistance and high service temperature. (sf-brother.com)
- OHMALLOY provide real good service in alloy service and can always help me in finding the correct resistance alloy. (fecralalloy.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)
Hardness2
- This alloy achieves good hardness and electrical conductivity though a combination of heat-treatment and cold work. (mastersourceco.com)
- 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)
Metal alloys2
- 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)
Phase Diagrams2
- 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)
Mechanical properties5
- 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)
Temperature7
- Nickel-chromium alloys are valued for their high corrosion resistance, high-temperature strength and high electrical resistance. (hgsteelproducts.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 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)
- 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)
- 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)
- 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)
- Some alloying elements, called alpha stabilizers, raise the alpha-to-beta transition temperature , [i] while others (beta stabilizers) lower the transition temperature. (wikipedia.org)
Composition4
- 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)
- The Stellite alloy was originally a cobalt-chromium binary alloy, and later developed into a cobalt-chromium-tungsten ternary composition. (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)
Tungsten5
- 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)
Castings2
- 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)
Conductivity1
- A high conductivity chromium copper alloy that obtains its optimum properties from a combination of both heat treatment and cold work. (mastersourceco.com)
Silicon2
- 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)
- 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)
Content2
- 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)
Wrought1
- In the case of nickel-rich, chromium-bearing alloys, the test method may be applied to wrought and weldments of products. (astm.org)
Aluminium1
- Alpha alloys which contain neutral alloying elements (such as tin ) and/ or alpha stabilisers (such as aluminium or oxygen ) only. (wikipedia.org)
Fumes1
- 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)
Metallic3
- Metallic alloys. (medscape.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)
- By combining several metallic elements in alloys, improved properties can be achieved beyond those of a single element. (medscape.com)
Thermal2
- These chromium carbide thermal spray powders result in a dense, well-bonded, very hard coating that is well suited for fretting and abrasive wear, and hard surfacing. (astroalloys.com)
- For more information on our selection of Praxair chromium carbide thermal spray powders or other protective coatings appropriate for your application, contact the team at Astro Alloys Inc. today! (astroalloys.com)
Predominantly1
- 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)
Properties3
- Phosphor bronze is another popular copper alloy, known for its excellent spring properties and resistance to fatigue. (jtcopper.com)
- While not as corrosion-resistant as copper-nickel alloys, it still offers a favorable combination of properties. (jtcopper.com)
- Composite stems combine the physical properties of alloys with those of other biomaterials. (medscape.com)
Amounts3
- 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)
Carbide2
- Astro Alloys offers chromium carbide powders from Praxair . (astroalloys.com)
- What is Chromium Carbide Cr3C2 Powder? (it-chuiko.com)
Resistant1
- Stronger than pure nickel, Monel alloys are resistant. (alloywirecable.com)
Dental restorations1
- Gold-based alloys have showed a long-term successful history for dental restorations and have been considered as gold standard 1,19 . (bvsalud.org)
Products3
- 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)
Iron6
- 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)
Widely1
- In the surface treatment of aluminum, hexavalent chromium conversion and passivation processes are the most widely used since its corrosion resistance has been proven for a long time. (socomore.com)
Oxidation resistance1
- Inconel® Alloy 600 is a nickel-chromium alloy with excellent carburization and good oxidation resistance. (bobmartinco.com)
Chloride1
- 1.1.2 Method B, Mixed Acid-Oxidizing Salt Test (Sections 11-18, inclusive) - This test method describes the procedure for conducting a boiling 23 % sulfuric + 1.2 % hydrochloric + 1 % ferric chloride + 1 % cupric chloride test which measures the susceptibility of certain nickel-rich, chromium-bearing alloys to display a step function increase in corrosion rate when there are high levels of grain boundary precipitation. (astm.org)