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

被引：0

作者：

张尚洲 ^{[1
]}

刘子全 ^{[1
]}

王广东 ^{[1
]}

陈礼清 ^{[2
]}

刘相华 ^{[2
]}

杨锐 ^{[3
]}

机构：

[1] School of Environment and Materials Engineering,Yantai University

[2] State Key Laboratory of Rolling and Automation,Northeastern University

[3] Institute of Metal Research,Chinese Academy of Sciences

来源：

Journal of Central South University of Technology | 2009年 / 16卷 / 03期

关键词：

(α+β) titanium alloy; microstructure; precipitation; aging;

D O I：

暂无

中图分类号：

TG146.23 [];

学科分类号：

080502 ;

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 ℃. 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 ℃ for β condition and 350 ℃ for (α+β) condition.

引用

页码：354 / 359

页数：6

共 6 条

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