(1. 清華大學(xué) 摩擦學(xué)國家重點實驗室，北京 100084；
2. 清華大學(xué) 機械工程系，北京 100084；
3. 深圳清華大學(xué)研究院 生物醫(yī)用材料及植入器械重點實驗室，深圳 518057)
摘 要: 熱氧化處理可改善醫(yī)用鈦合金耐磨損、耐腐蝕及生物活性等性能，為研發(fā)新一代人工關(guān)節(jié)耐磨涂層提供了希望。結(jié)合筆者研究結(jié)果探索了熱氧化鈦合金的薄膜生長機理及工藝參數(shù)優(yōu)化，綜述了熱氧化處理對醫(yī)用鈦合金耐磨損、耐腐蝕及生物活性改進的研究進展，最后對氧化膜失效機理及發(fā)展趨勢進行了總結(jié)和展望。
關(guān)鍵字: 醫(yī)用鈦合金；熱氧化；耐磨損性能；耐腐蝕性能；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
