Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel

doi:10.1016/j.jmst.2019.03.043

IMR OpenIR

	Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel
	Fan, Y. H.1,2,3; Zhang, B.1; Wang, J. Q.3; Han, E-H 3; Ke, W.3
通讯作者	Zhang, B.(bxz011@imr.ac.cn)
	2019-10-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	35 期号:10 页码:2213-2219
摘要	The effect of grain size (in the range from 4 mu m to 12 mu m) on the hydrogen embrittlement (HE) of 304 austenitic stainless steel (ASS) was studied. HE susceptibility result shows that HE resistance increases with grain refinement. Electron backscattered diffraction kernel average misorientation (EBSD-KAM) mapping shows that the strain localization can be mitigated by grain refinement. Hence, strain localization sites which act as highways for hydrogen diffusion and preferred crack initiation sites can be reduced along with grain refinement, leading to a high HE resistance. Meanwhile, grain size shows no influence on the strain induced martensite (SIM) transformation during the hydrogen charging slow strain tensile test (SSRT). Hence, the SIM formed during hydrogen charging SSRT is not responsible for the different HE resistance of 304 ASSs with various grain sizes. Hydrogen diffusion is supposed to be controlled by a competition between short-circuit diffusion along random grain boundary (RGB) and hydrogen trapping at dislocations, leading to a maximum hydrogen diffusion coefficient in the 304 ASS with an average grain size of 8 mu m. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Stainless steel Grain refinement Hydrogen embrittlement SEM EBSD
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jmst.2019.03.043
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[U1608257]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000484531600012
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：85[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/135206
专题	中国科学院金属研究所
通讯作者	Zhang, B.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Fan, Y. H.,Zhang, B.,Wang, J. Q.,et al. Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(10):2213-2219.
APA	Fan, Y. H.,Zhang, B.,Wang, J. Q.,Han, E-H,&Ke, W..(2019).Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(10),2213-2219.
MLA	Fan, Y. H.,et al."Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.10(2019):2213-2219.