医用钛合金的复合氧化工艺

Composite Oxidization Process of Biomedical Titanium Alloys

采用阳极氧化与热氧化相结合的复合氧化方法对医用钛合金进行氧化处理,研究了溶液组成及后处理工艺对表面形貌及耐蚀性的影响。采用扫描电子显微镜对膜层进行了形貌分析,并对氧化处理前后样品的耐磨性和耐蚀性进行了测试分析。试验结果表明,复合处理工艺大大提高了医用钛合金的耐蚀性和耐磨性。

Oxidization treatment of biomedical titanium alloys was carried out by a composite process (anodic oxidization+thermal oxidization). Effects of solution composition and post-treatment on the surface profile and corrosion resistance were investigated. SEM (scanning electronic microscope) was adopted to observe the morphologies of the oxidized alloys. The wear resistance and corrosion resistance property were assessed. The results showed that the post-treatment greatly improved the corrosion and wear resistances of biomedical titanium alloys.