Effect of post-weld heat treatment on microstructure and properties of Ti-23Al-17Nb alloy laser beam welding joints

被引：1
|
作者：
王国庆 [1 ]
吴爱萍 [1 ]
赵玥 [1 ]
邹贵生 [1 ]
陈强 [1 ]
任家烈 [1 ]
机构：
[1] Key Laboratory for Advanced Materials Processing Technology of the Ministry of Education,Department of Mechanical Engineering,Tsinghua University
来源：
Transactions of Nonferrous Metals Society of China | 2010年 / 20卷 / 05期
关键词：
Ti-23Al-17Nb; Ti3Al-based alloy; laser beam welding; post-weld heat treatment; mechanical properties;
D O I：
暂无
中图分类号：
TG456.7 [激光焊];
学科分类号：
080201 ; 080503 ;
摘要：
The mechanical properties of Ti-23Al-17Nb (mole fraction,%) laser beam welding alloy joint at room temperature are comparable to that of the base materials.However,the strength and ductility of the as-welded joint deteriorate seriously after high temperature circulation.The effect of post-welded heat treatment on the microstructure and mechanical properties of the joint was investigated.The heat treatment was taken at 980 ℃ for 1.5 h,then furnace cooling and air cooling were performed separately.The results indicate that proper post-welded heat treatment improves the ductility of the joint at high temperature.
引用
收藏
页码：732 / 739
页数：8
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