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Effect of grain boundary character distribution on hydrogen embrittlement in Fe-Ni based alloy
Hu, Honglei1,2; Zhao, Mingjiu1; Chen, Shenghu1; Rong, Lijian1
Corresponding AuthorZhao, Mingjiu(mjzhao@imr.ac.cn) ; Rong, Lijian(ljrong@imr.ac.cn)
2020-04-07
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume780Pages:10
AbstractThe feasibility of using grain boundary engineering (GBE) to reduce the susceptibility of hydrogen embrittlement in precipitation strengthened Fe-Ni based austenitic alloy is investigated. After GBE treatment, the fraction of special boundaries (SBs) increased from 46% to 78% while the hydrogen-induced loss of elongation is decreased from 21.8% to 8.6%. This improvement of hydrogen resistance can be attributed to not only the high fraction of SBs but also the disruption of random grain boundaries (RGBs) network. As the former has high resistance to hydrogen-induced crack initiation and the later can suppress the propagation of cracks.
KeywordFe-Ni based Alloy EBSD Gas hydrogen charging Grain boundary engineering Hydrogen embrittlement Intergranular cracking
Funding OrganizationNational Natural Science Foundation of China ; China Academy of Engineering Physics ; National Key Research and Development Program of China
DOI10.1016/j.msea.2020.139201
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China ; China Academy of Engineering Physics[U1730140] ; National Key Research and Development Program of China[2019YFB1505201]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000524357800035
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138301
Collection中国科学院金属研究所
Corresponding AuthorZhao, Mingjiu; Rong, Lijian
Affiliation1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 Jinzhai Rd, Hefei 230026, Peoples R China
Recommended Citation
GB/T 7714
Hu, Honglei,Zhao, Mingjiu,Chen, Shenghu,et al. Effect of grain boundary character distribution on hydrogen embrittlement in Fe-Ni based alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,780:10.
APA Hu, Honglei,Zhao, Mingjiu,Chen, Shenghu,&Rong, Lijian.(2020).Effect of grain boundary character distribution on hydrogen embrittlement in Fe-Ni based alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,780,10.
MLA Hu, Honglei,et al."Effect of grain boundary character distribution on hydrogen embrittlement in Fe-Ni based alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 780(2020):10.
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