文献类型：期刊文献

英文题名：Effect of loading mode on fracture behavior of CrNiMoV steel welded joint in simulated environment of low pressure nuclear steam turbine

作者：Huang, Yuhui[1];Ouyang, Yuqing[1];Weng, Shuo[1];Xuan, Fu-zhen[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China

年份：2019

卷号：205

起止页码：81

外文期刊名：ENGINEERING FRACTURE MECHANICS

收录：;EI(收录号：20184606083247);WOS:【SCI-EXPANDED(收录号:WOS:000453766000008)】；

基金：This work was financially sponsored by National Natural Science Foundation of China (Grant No. 51875202) and Natural Science Foundation of Shanghai (Grant No. 16ZR1408300).

语种：英文

外文关键词：Steels; Fracture mechanics; Stress corrosion cracking; Welded joints

摘要：Stress corrosion cracking (SCC) behaviors of 30Cr2Ni4MoV welded joint in simulated environment of low pressure nuclear steam turbine were addressed with different fracture positions in the welded joint by constant loading test (CLT) and slow strain rate test (SSRT). The fracture of the welded joint happened near the fusion line which was ascribed to the interaction between stress and galvanic effect for CLT, while in welded metal with the weakest strength for SSRT. The mismatch between galvanic corrosion and strength of welded joint determined the fracture location and SCC sensitivity of the welded joint when the two different loading modes were applied.