刘巧沐

• 1:中国航发四川燃气涡轮研究院

摘要(Abstract)：

利用光学显微镜、XRD和EBSD对β单相区锻造Ti17合金的显微组织和晶体取向进行了表征,分析了二者对Ti17合金室温拉伸性能的影响。结果表明:β锻Ti17合金中的原始β晶粒沿金属流动方向拉长,晶内为网篮状组织;β相呈现<100>β与压缩方向(锻坯轴向)平行的强丝织构;α相的强织构呈现在晶体c轴与轴向呈45°和90°的区域内;合金轴向拉伸试样的强度和断裂伸长率均低于径向拉伸试样的强度和断裂伸长率;轴向拉伸强度和塑性的降低分别与合金的转变α相织构和原始β晶粒形貌有关;通过细化原始β晶粒尺寸和弱化原始β晶粒的变形织构,可减小合金各向异性。

关键词(KeyWords)： Ti17合金;显微组织;织构;各向异性

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 刘巧沐

DOI: 10.13289/j.issn.1009-6264.2017-0564

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