李强,许祥杰,付振闯,周凯,潘登

• 1:上海理工大学机械工程学院

摘要(Abstract)：

采用电弧熔炼制备Ti-16Nb-(0,2,4)Fe合金,并对其进行均匀化、固溶、冷轧和退火处理。采用光学显微镜和X射线衍射仪分析了合金的显微组织和相组成,采用拉伸测试评价材料变形行为和力学性能。结果表明:少量Fe能够有效地稳定Ti-16Nb合金中的β相且无Ti-Fe金属间化合物生成;Fe还具有很好的固溶强化作用,合金屈服强度随Fe的增加而升高;具有亚稳定β相的Ti-16Nb-2Fe合金拉伸过程出现加工硬化,抗拉强度高达740 MPa;Ti-16Nb-4Fe合金具有稳定的β相,且显示出高强度、高塑性和低弹性模量的性能特征。

关键词(KeyWords)： 医用钛合金;Ti-Nb-Fe合金;力学性能;微观组织

Abstract:

Keywords:

基金项目(Foundation): 上海市自然科学基金(15ZR1428400);; 上海市科技支撑计划(16060502400)

作者(Author): 李强,许祥杰,付振闯,周凯,潘登

DOI: 10.13289/j.issn.1009-6264.2018-0002

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