许艳飞,王章,肖逸锋,文璟,阳文豪,易丹青,刘会群,吴靓,钱锦文

• 1:湘潭大学机械工程学院
• 2:湘潭大学焊接机器人及应用技术湖南省重点实验室
• 3:湘潭大学复杂轨迹加工工艺及装备教育部工程研究中心
• 4:中南大学材料科学与工程学院

摘要(Abstract)：

采用X射线衍射分析、透射电镜观察、显微硬度测试和拉伸试验等分析方法,研究了生物医用Ti-25Nb-10Ta-1Zr-0.2Fe(TNTZF)合金在-20℃温度下,轧制下压量为40%~80%变形过程中相组成、微观组织和力学性能的变化。结果表明:低温轧制过程中,合金发生了应力诱发α″马氏体相变。随着轧制变形量的增加,合金中位错密度不断增加,晶粒逐渐细化,合金的强度不断升高,弹性模量降低。TNTZF合金经60%轧制变形后,具有高强度、低模量以及适中的的塑性,综合力学性能优异,适合用于制造医疗器械。

关键词(KeyWords)： TNTZF合金;低温轧制;微观组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51401175,51504213,51271158);; 湖南省自然科学基金(2015JJ3123);; 湖南省重点研发计划项目(2015WK3021)

作者(Author): 许艳飞,王章,肖逸锋,文璟,阳文豪,易丹青,刘会群,吴靓,钱锦文

DOI: 10.13289/j.issn.1009-6264.2017-0009

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