王新,李蒙,张永强,王俭,徐哲,张平辉

• 1:宝钛集团有限公司
• 2:宝鸡钛业股份有限公司

摘要(Abstract)：

采用光学显微镜和室温拉伸实验机研究退火温度对SP-700钛合金板材显微组织和力学性能的影响。结果表明:退火温度低于760℃时,显微组织没有显著变化;退火温度为780℃时,显微组织由等轴状以及条状α相和β转变组织组成;退火温度为800~840℃时,显微组织由等轴α相和β转变组织构成;当退火温度升高至900℃时,显微组织由粗大的β相转变组织组成。室温拉伸实验表明:退火温度低于800℃时,抗拉强度变化不大,屈服强度和伸长率逐渐升高;当退火温度为800~840℃时,抗拉强度和屈服强度逐渐升高,伸长率逐渐下降;在740~820℃退火,纵横向抗拉强度和屈服强度的差异随着退火温度的升高而减小,纵横向伸长率差异先减小后增大。

关键词(KeyWords)： SP-700钛合金;α相;β转变组织;力学性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 王新,李蒙,张永强,王俭,徐哲,张平辉

DOI: 10.13289/j.issn.1009-6264.2017-0378

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