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钛合金因其诸多优良特性在医疗领域得到了广泛应用,但是其耐磨性常常需要改善。改善钛合金耐磨性的方法一般以涂覆硬质薄膜、氮化处理等表面处理为主,但这些方法都不可能在短时间内完成,处理成本高昂。在气体中进行扩散处理,可使气体元素、喷射颗粒元素在材料表面扩散,从而使材料表面硬化。因此,日本学者在氮气气氛中对钛合金进行扩散处理,以形成高性能氮化层,提高钛合金的耐磨性。
Titanium alloys are widely used in the medical field because of their many excellent properties, but their wear resistance often needs to be improved. Methods to improve the wear resistance of titanium alloy are generally coated with a hard film, nitriding and other surface treatment based, but these methods can not be completed in a short time, the processing cost is high. In the gas diffusion treatment, the gas elements can be sprayed particle elements in the material surface diffusion, so that the material surface hardening. Therefore, Japanese scholars in the nitrogen atmosphere for titanium alloy diffusion treatment to form a high-performance nitride layer to improve the wear resistance of titanium alloys.