杨柳,于辉,王占瑞,高甜,肖强,王莹

• 1:燕山大学机械工程学院
• 2:钒钛资源综合利用国家重点实验室

摘要(Abstract)：

利用光学显微镜、扫描电镜和万能拉伸机等研究了退火温度、固溶温度、时效时间等工艺参数对新型装甲防护用Ti-555钛合金力学性能、微观组织和晶体结构的影响。结果表明：采用900℃×2 h空冷+550℃×6 h时效的工艺对Ti-555钛合金板材进行热处理后，其具有最优的强塑性和强韧性匹配；加热保温后的冷却速度对合金的强塑性匹配有显著影响，较快的冷却速度使得转变的β组织中形成细针状次生α相和次生α′相，经过进一步时效处理后，合金具有较高的强塑性匹配；随着保温时间的增加和冷却速度的降低，晶体结构由基面织构向柱面织构转变，并出现棱锥面织构，使合金断面收缩率降低，不利于其成形。

关键词(KeyWords)： 装甲钛合金;力学性能;微观组织;晶体取向

Abstract:

Keywords:

基金项目(Foundation): 中央引导地方科技发展资金项目(216Z1002G);; 河北省自然科学基金(E2021203237)

作者(Author): 杨柳,于辉,王占瑞,高甜,肖强,王莹

DOI: 10.13289/j.issn.1009-6264.2024-0336

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