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Analysis of medical titanium alloy wear resistance patent application

Biomedical titanium alloy is an important branch of medical materials science, which is mainly used to treat or replace human tissues and organs or enhance their functions. It is a new carrier material with high technical content and high economic value, and a new field of continuous development and expansion in material science. In biomedical metal materials, titanium and titanium alloy has a pivotal position, because of its excellent comprehensive performance, has become an artificial joints (hip, knee, shoulder, ankle, elbow, wrist, knuckles, etc.), bone trauma products (nails, plywood, screws, etc.) and orthopaedic spine internal fixation system, braces, tooth orthopaedic silk, dental implants, artificial heart valves, material of choice for interventional cardiovascular stents and other medical products.

Titanium and titanium alloys have good mechanical properties, excellent corrosion resistance and biocompatibility, have become the biomedical material of choice for hard tissue replacement and repair, as hard tissue replacement material, alloy wear resistance is an important indicator of poor wear resistance of the alloy in the process of long-term use can lead to malignant cells reaction, the release of tissue inflammation, destructive enzymes, osteolysis, infection, implant loosening and pain. Compared with many other metal materials, such as stainless steel and nickel-based alloy, titanium alloy has a high friction coefficient and poor wear resistance, which results in a large number of Ti, Al and V black debris generated by wear in its implanted tissues, which can cause aseptic loosening and ultimately lead to joint replacement failure. Therefore, it is necessary to improve the wear resistance of titanium and titanium alloys.
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