Superplastic formability of Ti-6Al-4V butt-welded plate by laser beam welding

被引：6
|
作者：
王刚 [1 ]
张文丛 [1 ]
张功磊 [1 ]
徐志良 [1 ]
机构：
[1] School of Materials Science and Engineering,Harbin Institute of Technology at Weihai
来源：
TransactionsofNonferrousMetalsSocietyofChina | 2009年 / 19(S2)卷 / S2期
基金：
中国国家自然科学基金;
关键词：
superplastic forming; Ti-6Al-4V; laser beam welding;
D O I：
暂无
中图分类号：
TG456.7 [激光焊];
学科分类号：
摘要：
The superplasticity of Ti-6Al-4V butt-welded plates by laser beam welding(LBW)was studied in virtue of hot tensile tests and superplastic bulging tests.Furthermore,microstructural evolution of weld metal upon superplastic forming was systematically analyzed via metallographical tests and scanning electron microscope(SEM).The relation between the microstructure of weld metal and its superplastic ability was discussed.The experimental results show that Ti-6Al-4V butt-welded plates by LBW possess superplasticity.The maximum elongation is up to 154%and the maximum bulge height can be up to 1.81 times the internal radius of the female die.There is an optimum value of the bulge height for bulging gas pressure.
引用
收藏
页码：429 / 433
页数：5
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