李文鹏,陈永楠,李中伟,魏建锋,赵永庆

• 1:河北省电力研究院
• 2:长安大学材料科学与工程学院
• 3:西安交通大学金属材料强度国家重点实验室
• 4:西北有色金属研究院

摘要(Abstract)：

对上限温度为500、650、800℃高温短时热循环200次后的Ti-6Al-4V合金室温力学性能和组织进行了研究。结果表明:循环温度对合金强度影响较为明显,循环温度的升高使合金抗拉强度降低;分析认为:温度高于650℃,实验合金组织中β相逐渐分解碎化,β相含量减少和α晶粒逐渐长大是强度降低的主要原因。

关键词(KeyWords)： 热循环;Ti-6Al-4V合金;组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划资助项目(2007CB613807)

作者(Author): 李文鹏,陈永楠,李中伟,魏建锋,赵永庆

DOI: 10.13289/j.issn.1009-6264.2012.01.019

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