TC4钛合金焊后电子束局部热处理及焊接残余应力测试研究  

Study of electron beam post-weld local heat treatment for TC4 titanium alloy and residual stress measurement of weld

作　　者：付鹏飞[1] 刘方军[1] 付刚[1] 毛智勇[1] 

机构地区：[1]北京航空制造工程研究所高能束流加工技术国防重点实验室,北京100024

出　　处：《核技术》2006年第2期136-139,共4页Nuclear Techniques

摘　　要：针对TC4钛合金通过电子束焊后局部热处理工艺来改善接头的性能,采用X射线法对电子束局部热处理后焊接残余应力的分布趋势进行了测试研究。试验结果表明:经电子束局部热处理后,TC4钛合金焊缝区马氏体晶粒组织得到细化;同时上表面接头残余应力的分布得到改善。In order to improve the joint＇s properties, local heat treatment of TC4 titanium alloy with electron beam was conducted. After electron beam local heat treatment, residual stresses of weld were tested by the X-ray method. Compared with EBW, the martensite grains of weld become finer after electron beam local heat treatment, and residual stress distribution of TC4 titanium alloy joints is improved.

关 键 词：电子束 局部热处理 TC4钛合金 残余应力 

分 类 号：TG441[金属学及工艺—焊接]