Abnormal difference of hydrogen-induced ductility loss in nickel-based alloy 625 at conventional and slow strain rate

doi:10.1016/j.ijhydene.2024.08.030

IMR OpenIR

	Abnormal difference of hydrogen-induced ductility loss in nickel-based alloy 625 at conventional and slow strain rate
	Liu, Jiaxing 1,2; Qin, Linlin 1,2; Rong, Lijian 1; Zhao, Mingjiu 1
通讯作者	Zhao, Mingjiu(mjzhao@imr.ac.cn)
	2024-09-19
发表期刊	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN	0360-3199
卷号	83 页码:23-28
摘要	Alloy 625 plays a crucial role in high-pressure hydrogen environments typical of hydrogen refuelling stations, where cyclic temperature and loading conditions prevail. In this study, we reveal that hydrogen-induced ductility loss of nickel-based alloy 625 significant difference which change from 11.9% at slow strain rate to 20.1% at conventional strain rate. The difference can be attributed to a change in deformation mode: from dislocation slipping under slow strain rate to twinning under conventional strain rate. Specifically, hydrogen-refined deformation twins and the promotion of twin bundles under conventional strain rates diminish the twin- induced plasticity effect of the alloy. This shift in deformation mode also alters the hydrogen embrittlement mechanism across the two strain rates. These findings provide valuable insights for hydrogen embrittlementresistant designing and evaluating hydrogen compatibility for alloy 625.
关键词	Nickel based alloy Hydrogen embrittlement Strain rate Twinning Hydrogen-induced cracking
资助者	National Key Research and Develop-ment Program of China
DOI	10.1016/j.ijhydene.2024.08.030
收录类别	SCI
语种	英语
资助项目	National Key Research and Develop-ment Program of China[2019YFB1505201]
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
WOS类目	Chemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS记录号	WOS:001293100100001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/189139
专题	中国科学院金属研究所
通讯作者	Zhao, Mingjiu
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jiaxing,Qin, Linlin,Rong, Lijian,et al. Abnormal difference of hydrogen-induced ductility loss in nickel-based alloy 625 at conventional and slow strain rate[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2024,83:23-28.
APA	Liu, Jiaxing,Qin, Linlin,Rong, Lijian,&Zhao, Mingjiu.(2024).Abnormal difference of hydrogen-induced ductility loss in nickel-based alloy 625 at conventional and slow strain rate.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,83,23-28.
MLA	Liu, Jiaxing,et al."Abnormal difference of hydrogen-induced ductility loss in nickel-based alloy 625 at conventional and slow strain rate".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 83(2024):23-28.