文献类型：期刊文献

英文题名：The role of reverted transformation in hydrogen embrittlement of a Cu-containing low carbon high strength steel

作者：Xi, Xiaohui[1];Wu, Tong[1];Tian, Yuwan[1];Hu, Jun[2];Huang, Shuntian[1];Xie, Tingxin[1];Wang, Jinliang[1];Chen, Liqing[2]

机构：[1]Guangdong Ocean Univ, Sch Mech Engn, Zhanjiang 524088, Peoples R China;[2]Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China

年份：2023

卷号：25

起止页码：5990

外文期刊名：JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T

收录：SCI-EXPANDED(收录号：WOS:001056663700001)、、EI(收录号：20230176544)、Scopus(收录号：2-s2.0-85164992394)、WOS

基金：This work is supported by Guangdong Basic and Applied Basic Research Foundation (Grant No: 2021A1515110581), the National Natural Science Foundation of China (Grant No: 52101133), the Science and Technology Projects of Zhanjiang (Grant No: 2021E05003 and 2022A01031) and the program for scientific research start-up funds of Guangdong Ocean University (Grant No: 060302062306).

语种：英文

外文关键词：Low carbon low alloy steel; Reverted transformation; Austenite; Grain boundary characteristics; Hydrogen embrittlement

外文摘要：This work presents an investigation on the role of reverted transformation in hydrogen embrittlement, aiming at revealing the influencing mechanism of austenite and grain boundary characteristics on hydrogen embrittlement (HE) susceptibility during reverted transformation. The results showed that HE susceptibility decreased with the annealing temperature increasing from 680 & DEG;C to 720 & DEG;C, which attributed to a combined effect of austenite and grain boundary distribution. Both the fractions of austenite and high angle grain boundary (HAGB) increased with the annealing temperature increasing from 680 & DEG;C to 700 & DEG;C, which resulted in a lower HE susceptibility at 700 & DEG;C due to strong H storage of austenite and HAGB. As the annealing temperature further increased to 720 & DEG;C, the fraction of austenite exhibited a decline, but the fraction of HAGB monotonously increased. As a result, a lower HE susceptibility was achieved at 720 & DEG;C. This indicated that grain boundary distribution played a determining role in the resistance to HE. We ascribed this to the variant selection and Bain/CP grouping.& COPY; 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).