Joining of γ-TiAl to low alloy steel by electron beam welding

被引：11
|
作者：
Ding, J [1 ]
Wang, JN
Hu, ZH
Ding, DY
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China
[2] China Aerosp Corp, Shanghai Acad Aerosp Technol, Shanghai 200233, Peoples R China
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2002年 / 18卷 / 08期
关键词：
D O I：
10.1179/026708302225003659
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The weldability of cast gamma-TiAl with a low alloy steel by electron beam welding was investigated in this study. It was found that when a higher heat input was employed, solid state cracking appeared in the welds due to a high thermal stress, as well as formation of a brittle TiC phase and a small fraction of Ti3Al intermetallic. Crack free welding could be achieved if welding parameters were properly controlled such that thermal stress was released and formation of TiC and Ti3Al was minimised.
引用
收藏
页码：908 / 912
页数：5
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