添加铜填充层的Ti-15-3钛合金与304不锈钢电子束焊接过程中的温度与应力场（英文）

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Bibliographic Details
Published in中国有色金属学报：英文版 Vol. 22; no. 2; pp. 398 - 403
Main Author 张秉刚 王廷 段潇辉 陈国庆 冯吉才
Format Journal Article
LanguageEnglish
Published 2012
Subjects
304不锈钢
Ti-15-3合金
应力场
温度场
电子束焊接
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Bibliography:ZHANG Bing-gang, WANG Ting, DUAN Xiao-hui, CHEN Guo-qing, FENG Ji-cai State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
43-1239/TG
Ti-15-3 alloy; 304 stainless steel; electron beam welding; temperature field; residual stress
Electron beam welding of Ti-15-3 alloy to 304 stainless steel （STS） using a copper filler metal was carried out. The temperature fields and stress distributions in the Ti/Fe and Ti/Cu/Fe joint during the welding process were numerically simulated and experimentally measured. The results show that the rotated parabola body heat source is fit for the simulation of the electron beam welding. The temperature distribution is asymmetric along the weld center and the temperature in the titanium alloy plate is higher than that in the 304 STS plate. The thermal stress also appears to be in asymmetric distribution. The residual tensile stress mainly exists in the weld at the 304 STS side. The copper filler metal decreases the peak temperature and temperature grade in the joint as well as the residual stress. The longitudinal and lateral residual tensile strengths reduce by 66 MPa and 31 MPa, respectively. From the temperature and residual stress, it is concluded that copper is a good filler metal candidate for the electron beam welding of Ti-15-3 titanium alloy to 304 stainless steel.
ISSN:1003-6326