文献类型：期刊文献

英文题名：Multiaxial low cycle fatigue behavior and life prediction of wire arc additive manufactured 308L stainless steel

作者：Li, Yajing[1,2];Zhang, Shuyao[1,3];Yu, Wanqi[1,3];Li, Bo[2];Xuan, Fuzhen[2];Chen, Xu[1,3]

机构：[1]Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300354, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[3]Tianjin Key Lab Chem Proc Safety & Equipment Techn, Tianjin 300350, Peoples R China

年份：2024

卷号：183

外文期刊名：INTERNATIONAL JOURNAL OF FATIGUE

收录：;EI(收录号：20241115730010);WOS:【SCI-EXPANDED(收录号:WOS:001202090500001)】；

基金：The work was supported by China Postdoctoral Science Foundation (2023TQ0113) , Shanghai Pujiang Programme (23PJD022) , Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China (HT-KFKT-14-2018003) , and China Scholarship Council (202006250074) .

语种：英文

外文关键词：Wire arc additive manufacturing; Low cycle fatigue; Multiaxial fatigue; Fatigue life prediction; Stainless steel

摘要：Wire arc additive manufacturing (WAAM) is a technique that has gained popularity in various industrial sectors due to its high productivity and flexibility. However, the comprehension of cyclic deformation and fatigue behaviors in WAAM austenitic stainless steel (SS), particularly under complex multiaxial loading conditions, is much less advanced compared to conventional manufacturing methods. This study aims to fill some of these gaps by performing fatigue tests of WAAM 308L SS under axial, torsional and axial-torsional multiaxial loadings. Similar tests were carried out on the hot-rolled 308L SS as a basis for comparison. WAAM 308L SS exhibits notable distinctions in cyclic deformation, fatigue life, cracking mode and fatigue failure mechanisms compared to its hot-rolled counterparts as a result of its distinct manufacturing technologies and resulting microstructures. To assess all fatigue life data, three critical plane criteria, namely FS, SWT and CXH criteria, were employed. The CXH model, which considers the effects of both tensile and shear damage on fatigue properties, has the ability to predict the fatigue life of both hot-rolled and WAAM 308L SS.