期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 47, 期 79, 页码 33883-33890出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2022.07.257
关键词
Stainless steel; Delta ferrite; SEM; AFM; Hydrogen embrittlement
资金
- National Natural Science Foundation of China
- Young Scientist Support Project of Henan Province
- [52001282]
- [51801186]
- [U1904214]
- [2022HYTP015]
The role of 8-Fe in hydrogen embrittlement of 17-4 PH steel was studied. It was found that 8-Fe can reduce hydrogen concentration, impede brittle fracture, and provide a new pathway to improve HE resistance in high strength martensitic steels.
The role of 8-Fe in hydrogen embrittlement (HE) of 17-4 PH steel is studied in this work. Scanning Kelvin probe force microscopy result indicates that 8-Fe is a hydrogen trapping site. Accordingly, 8-Fe can reduce the hydrogen concentration of surrounding martensite and prior austenite grain boundaries (PAGBs) and imped the brittle fracture along lath boundaries and PAGBs, which can be beneficial to the HE resistance improvement. How-ever, a cleavage fracture of 8-Fe can occur under the synergetic action of hydrogen -enhanced localized plasticity (HELP) and hydrogen enhancement of the strain-induced generation of vacancies (HESIV). These findings indicate a new path to improving HE resistance of high strength martensitic steels.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据