陈少华,张麦仓,贾萌柳,彭桃

• 1:北京科技大学材料科学与工程学院

摘要(Abstract)：

利用扫描电镜和背散射电子衍射技术等分析方法,研究了TC4钛合金在连续热变形过程中的组织和取向演化。结果表明:随着应变量的增加,初生α相所占比例明显降低;长条状初生α片层发生球化,尺寸也有一定程度的下降,片层β相厚度减小;Burgers取向关系偏差角度变大。进一步的半定量分析表明,在真应变ε为0.5~0.6时界面能达到最大值,共格界面消失。与此同时,Burgers取向关系的角度偏差也在相同的应变量范围下达到15°,界面完成由半共格界面向非共格界面过渡。

关键词(KeyWords)： TC4合金;连续热变形;组织;取向

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 陈少华,张麦仓,贾萌柳,彭桃

DOI: 10.13289/j.issn.1009-6264.2016-X280

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