文献类型：期刊文献

英文题名：An approach to improve hydrogen embrittlement of austenitic stainless steel associated with martensite by tailoring martensitic transformation

作者：Wang, Jinliang[1,3,4];Liu, Yujie[1];Liu, Zhikun[1];Xi, Xiaohui[1,2,3];Wu, Tong[1];Lan, Xiuling[1];Hu, Jiezhen[1]

机构：[1]Guangdong Ocean Univ, Sch Mech Engn, Zhanjiang 524088, Peoples R China;[2]Zhanjiang Key Lab Corros & Protect Ocean Engn Equi, Zhanjiang 524088, Peoples R China;[3]Guangdong Engn Technol Res Ctr Ocean Equipment & M, Zhanjiang 524088, Peoples R China;[4]Guangdong Ocean Univ, Guangdong Prov Key Lab Intelligent Equipment South, Zhanjiang 524088, Peoples R China

年份：2026

卷号：193

外文期刊名：ENGINEERING FAILURE ANALYSIS

收录：SCI-EXPANDED(收录号：WOS:001764599800001)、、EI(收录号：20261820633345)、WOS

基金：This work is supported by the National Natural Science Foundation of China (Grant No: 52401141, 52101133) , Guangdong Basic and Applied Basic Research Foundation (Grant No: 2024A1515010726) , the Innovation Team Project for Ordinary Universities in Guangdong Province (Grant No: 2024KCXTD041) , Project of Guangxi Zhuang Autonomous Region Key Technologies R & D Program (GK AB23026069) . We would like to thank the Analysis and Testing Center of Guangdong Ocean University for providing support with the transmission electron microscopy.

语种：英文

外文关键词：Austenitic stainless steel (ASS); Temperature-induced martensitic; transformation (TIMT); Deformation-induced martensitic; transformation (DIMT); Hydrogen embrittlement (HE); Dislocation; Grain boundary

外文摘要：The effect of temperature-induced martensite (TIM) and deformation-induced martensite (DIM) on hydrogen embrittlement (HE) resistance of austenitic stainless steel (ASS) was comparatively investigated. A considerably higher HE resistance was achieved in the steels with TIM than that with DIM. This may be attributed to a higher density of Geometrically Necessary Dislocation (GND) and a higher proportion of low angle grain boundaries (LAGBs) in the steels with DIM, and a higher fraction of Sigma 3 in the steels with TIM. LAGBs and dislocations with lower hydrogen binding energy increased the hydrogen diffusion coefficient, thereby promoting the hydrogen absorption/desorption kinetics. While, Sigma 3 with more regular atomic arrangements and lower interfacial energy reduced fast migration for hydrogen. Accordingly, hydrogen can be captured steadily, promoting the crack propagation along the prior austenite grain boundaries.