(1. 清华大学 摩擦学国家重点实验室，北京 100084；
2. 清华大学 机械工程系，北京 100084；
3. 深圳清华大学研究院 生物医用材料及植入器械重点实验室，深圳 518057)
摘 要: 热氧化处理可改善医用钛合金耐磨损、耐腐蚀及生物活性等性能，为研发新一代人工关节耐磨涂层提供了希望。结合笔者研究结果探索了热氧化钛合金的薄膜生长机理及工艺参数优化，综述了热氧化处理对医用钛合金耐磨损、耐腐蚀及生物活性改进的研究进展，最后对氧化膜失效机理及发展趋势进行了总结和展望。
关键字: 医用钛合金；热氧化；耐磨损性能；耐腐蚀性能；生物活性
（1. State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China;
2. Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China;
3. Biomechanics and Biotechnology Laboratory, Research Institute of Tsinghua University in Shenzhen,
Shenzhen 518057, China）
Abstract:The thermal oxidation treatment can improve the wear resistance, corrosion resistance and biological activity of medical titanium alloy and provides new hope for the development of the long lifetime artificial joints. The coating growth mechanism and process parameters optimization of thermally oxidized titanium alloy were studied based on our research results. Then, the research progress on the improvement of wear resistance, corrosion resistance and biological activity of thermally oxidized biomedical titanium alloy was reviewed. Finally, the failure mechanism and development trend were summarized and prospected.
Key words: medical titanium alloy; thermal oxidation; wear resistance; corrosion resistance; biological activity
