低弹性模量钛合金的研究进展

Progress in Low Elastic Modulus Titanium Alloy

钛合金作为一种具有良好生物相容性、抗腐蚀性和力学性能的生物医用金属材料已经得到了实际应用。发展新型低弹性模量钛合金是该领域的研究热点之一。从理论设计和实验研究2个方面对低弹性模量钛合金的研究和发展现状进行了评述。以d电子合金设计方法和第一原理计算为代表的理论方法已经成为低弹性模量Ti合金设计的有效手段。多元合金化设计和优化的热机械处理工艺对发展新型多功能、高性能生物医用Ti合金十分重要。

Titanium alloys have been practically used as biomedical metallic materials because of good biocom patibility, corrosion resistance and mechanical properties. Developing new Ti alloy with low elastic modulus is one of the research hotspots. The recent research status of Ti alloy with low elastic modulus from both theoretical and experimental aspects is reviewed. The d-electron alloy design and the first principle calculation have been the effective methods to design Ti alloy with low elastic modulus. The multi-alloying-element design and the optimized thermomechanical processing play important roles in the development of new biomedical Ti alloys with multifunction and high pro- perties.