The film formed on the surface of titanium implant after surface modification of titanium material makes the implant have better wear and corrosion resistance and biocompatibility,
Surface treatment of titanium:
1. Enhanced corrosion resistance treatment:
Atmospheric oxidation treatment and anodic oxidation treatment; It can not only improve corrosion resistance, but also prevent hydrogen embrittlement; In addition, there are platinum plating, palladium oxide/titanium oxide treatment; 2. Improve wear resistance:
Nitriding treatment shall be carried out at high temperature (800-900 ℃) to make the Vickers hardness of its surface reach more than 700; By surfacing, appropriate nitrogen or oxygen is added into argon to increase the surface hardness 2-3 times; Through ion plating, a layer of titanium nitride is formed on its surface, with a thickness of about 5 microns and a Vickers hardness of 16000 - 20000 chromium plating, etc; Through the above simple understanding of titanium and its alloys, we will also understand some roles of titanium and its alloys in PCB production, which will be enlightening in use, maintenance and other aspects; Titanium has become the third largest future application prospect after magnesium and aluminum as a wide range of metals!
Among biomedical metal materials, titanium and its alloys are the materials for medical implant products such as artificial joints, bone trauma products, spinal orthopedic internal fixation systems, dental implants, dental brackets, artificial heart valves, interventional cardiovascular stents, and so on. At present, there is no better metal material than titanium for clinical use.
In recent years, titanium rods and titanium alloys have been widely used in biomedicine, daily necessities and industrial fields.
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