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Ti-6Al-7Nb (UNS designation R56700) is an alpha-beta titanium alloy first synthesized in 1977 containing 6% aluminum and 7% niobium. It features high strength and has similar properties as the cytotoxic vanadium containing alloy Ti-6Al-4V. Ti-6Al-7Nb is used as a material for hip prostheses. [1]
Metallosis is the medical condition involving deposition and build-up of metal debris in the soft tissues of the body. [1]Metallosis has been known to occur when metallic components in medical implants, specifically joint replacements, abrade against one another. [1]
The ceramic surface is extremely abrasion resistant compared to traditional metal implant materials such as cobalt chromium. It also has a lower coefficient of friction against ultra-high molecular weight polyethylene , the typical counterface material used in total joint replacements. These two factors likely contribute to the significantly ...
Titanium's durability, light weight, and dent and corrosion resistance make it useful for watch cases. [111] Some artists work with titanium to produce sculptures, decorative objects and furniture. [119] Titanium may be anodized to vary the thickness of the surface oxide layer, causing optical interference fringes and a variety of bright colors ...
Sir John Charnley, CBE, FRS [1] (29 August 1911 – 5 August 1982) was an English orthopaedic surgeon.He pioneered the hip replacement operation, [4] which is now one of the most common operations both in the UK and elsewhere in the world, and created the "Wrightington centre for hip surgery".
The HIP process subjects a component to both elevated temperature and isostatic gas pressure in a high pressure containment vessel. The pressurizing gas most widely used is argon. An inert gas is used so that the material does not chemically react. The choice of metal can minimize negative effects of chemical reactions.
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