戎旭东,黄陆军,王博,唐骜,耿林

• 1:哈尔滨工业大学材料科学与工程学院

摘要(Abstract)：

以提高魏氏体组织Ti60合金的拉伸强度与塑性为目标,研究固溶与时效处理对Ti60合金组织与性能演变的影响规律,并优化热处理参数。结果表明,初始魏氏组织晶粒较为粗大,经过固溶与时效处理后,晶粒明显减小,层片状α相明显减少。初始魏氏组织Ti60合金抗拉强度为850 MPa,伸长率为0.9%,1000℃固溶处理后,Ti60合金的抗拉强度达到1100 MPa,伸长率为3.7%。1000℃固溶+600℃8 h时效处理后,抗拉强度达到1200 MPa,伸长率为3.3%。随固溶温度提高,其硬度与抗拉强度增加,伸长率降低。随时效时间延长,硬度先增大后减小。经1050℃固溶+600℃8 h时效处理后Ti60合金具有最大硬度值509 HV。

关键词(KeyWords)： Ti60合金;热处理;魏氏体组织;拉伸性能

Abstract:

Keywords:

基金项目(Foundation): 国家高技术研究发展计划项目(2013AA031202);; 国家自然科学基金(51471063、51271064);; 中央高校基本科研业务费专项资金(HIT.BRETIII201401)

作者(Author): 戎旭东,黄陆军,王博,唐骜,耿林

DOI: 10.13289/j.issn.1009-6264.2015.10.007

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