Microstructural evolution during aging of Ti-5Al-5Mo-5V-1Cr-1Fe alloy

被引：0
作者：
Shang-zhou Zhang
Zi-quan Liu
Guang-dong Wang
Li-qing Chen
Xiang-hua Liu
Rui Yang
机构：
[1] Yantai University,School of Environment and Materials Engineering
[2] Northeastern University,State Key Laboratory of Rolling and Automation
[3] Chinese Academy of Sciences,Institute of Metal Research
来源：
Journal of Central South University of Technology | 2009年 / 16卷
关键词：
(; +; ) titanium alloy; microstructure; precipitation; aging;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The evolution of microstructure on aging of an (α+β) titanium alloy (Ti-5Al-5Mo-5V-1Cr-1Fe) in the β and (α+β) solution-treated and quenched conditions was investigated. The presence of very fine ω phase was detected by electron diffraction for samples aged below 400 °C. The fine α aggregates are uniformly formed within β grains by nucleating at the ω particles or β/ω interfaces. At higher temperature, the formation of ω phase is avoided and the α lamellae are precipitated at the preferred site of grain boundary and then within the matrix. The highest hardness values are found when the alloys are aged at 450 °C for β condition and 350 °C for (α+β) condition.
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页码：354 / 359
页数：5
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