文献类型：期刊文献

英文题名：Evolution of microstructure and mechanical properties of vacuum electron beam welded joints in a near beta titanium alloy: Influence of heat treatment

作者：Yu, Weixin[1];Hou, Shusen[1];Lv, Yifan[2];Cao, Juihui[1];Su, Chen[3];Gao, Fuyang[2];Zhang, Jinyong[4]

第一作者：Yu, Weixin

通讯作者：Yu, WX[1];Lv, YF[2];Su, C[3]

机构：[1]Xinxiang Univ, Sch Mech & Elect Engn, Xinxiang 453003, Henan, Peoples R China;[2]Luoyang Ship Mat Res Inst, Luoyang 471000, Peoples R China;[3]Xuzhou Construct Machinery Grp Co Ltd XCMG, Xuzhou 221004, Jiangsu, Peoples R China;[4]China Univ Min & Technol, Sch Mat & Phys, Xuzhou 221116, Jiangsu, Peoples R China

第一机构：新乡学院机电工程学院

通讯机构：[1]corresponding author), Xinxiang Univ, Sch Mech & Elect Engn, Xinxiang 453003, Henan, Peoples R China;[2]corresponding author), Luoyang Ship Mat Res Inst, Luoyang 471000, Peoples R China;[3]corresponding author), Xuzhou Construct Machinery Grp Co Ltd XCMG, Xuzhou 221004, Jiangsu, Peoples R China.|[1107111]新乡学院机电工程学院;[11071]新乡学院;

年份：2022

卷号：204

外文期刊名：VACUUM

收录：;EI(收录号：20223212544801);Scopus(收录号：2-s2.0-85135415229);WOS:【SCI-EXPANDED(收录号:WOS:000868576800003)】；

基金：The work was funded by the Key Science and Technology Research Project of Henan Province of China (No. 222102230023), and the Key Scientific Research Projects of Colleges and Universities in Henan Province (No. 22A430035) and National Natural Science foundation of China (Grant No. 51601216).

语种：英文

外文关键词：Near beta titanium alloy; Vacuum electron beam welding; Microstructure evolution; Mechanical properties

摘要：Herein, the two plates of a near beta titanium alloy (Ti55531) with a thickness of 60 mm were welded by vacuum electron beam welding, and full penetration welded joints were obtained. The results show that the welded joint can be divided into weld bond, heat affected zone and base metal. Microstructures of weld bond and heat affected zone are composed of coarse beta grains and fine a phases distributed at the beta grain boundaries and in the beta grains, and the beta grains in weld bond are coarser than those in heat affected zone. The solution treatment can reduce the microhardness and improve the impact toughness of different zones of the joint. The tensile strength of the welded joint can be improve to 1129 MPa by solution and aging treatment. The influence of heat treatment on microstructures and mechanical properties of these welded joints were discussed in detailed.