Hydrogen embrittlement behaviors of ultrafine-grained 22Mn-0.6C austenitic twinning induced plasticity steel

doi:10.1557/jmr.2017.351

IMR OpenIR

	Hydrogen embrittlement behaviors of ultrafine-grained 22Mn-0.6C austenitic twinning induced plasticity steel
	Bai, Yu 1,2; Tian, Yanzhong 3; Gao, Si 1; Shibata, Akinobu 1,2; Tsuji, Nobuhiro 1,2
通讯作者	Bai, Yu(bai.yu.6m@kyoto-u.jp)
	2017-12-28
发表期刊	JOURNAL OF MATERIALS RESEARCH
ISSN	0884-2914
卷号	32 期号:24 页码:4592-4604
摘要	Hydrogen embrittlement behaviors of a 22Mn-0.6C (mass%) twinning induced plasticity (TWIP) steel with the grain sizes of 21 m (coarse grain) and 0.58 m (ultrafine grain) were investigated by means of hydrogen precharging and subsequent slow strain rate tensile tests. The total elongation and fracture stress for both of the coarse-grained and ultrafine-grained specimens decreased by hydrogen charging. The area fraction of the brittle fracture surfaces in the ultrafine-grained specimen was much smaller than that in the coarse-grained specimen. Three-point bending test also showed that the reduction of the fracture toughness by the introduction of hydrogen was much smaller in the ultrafine-grained specimen than that in the coarse-grained specimen. It was concluded that the suppressed hydrogen embrittlement by grain refinement in the 22Mn-0.6C TWIP steel was probably due to the smaller hydrogen contents per unit grain boundary area in the finer grain-sized material.
关键词	high-manganese twining induced plasticity (TWIP) steel hydrogen embrittlement grain boundary
资助者	Elements Strategy Initiative for Structural Materials (ESISM) ; Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan ; Japanese Government Scholarship
DOI	10.1557/jmr.2017.351
收录类别	SCI
语种	英语
资助项目	Elements Strategy Initiative for Structural Materials (ESISM) ; Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan[15H05767] ; Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan[2201] ; Japanese Government Scholarship
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000419001500015
出版者	CAMBRIDGE UNIV PRESS
引用统计	被引频次：28[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/321006/80436
专题	中国科学院金属研究所
通讯作者	Bai, Yu
作者单位	1.Kyoto Univ, Dept Mat Sci & Engn, Kyoto 6068501, Japan 2.Kyoto Univ, ESISM, Kyoto 6068501, Japan 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Bai, Yu,Tian, Yanzhong,Gao, Si,et al. Hydrogen embrittlement behaviors of ultrafine-grained 22Mn-0.6C austenitic twinning induced plasticity steel[J]. JOURNAL OF MATERIALS RESEARCH,2017,32(24):4592-4604.
APA	Bai, Yu,Tian, Yanzhong,Gao, Si,Shibata, Akinobu,&Tsuji, Nobuhiro.(2017).Hydrogen embrittlement behaviors of ultrafine-grained 22Mn-0.6C austenitic twinning induced plasticity steel.JOURNAL OF MATERIALS RESEARCH,32(24),4592-4604.
MLA	Bai, Yu,et al."Hydrogen embrittlement behaviors of ultrafine-grained 22Mn-0.6C austenitic twinning induced plasticity steel".JOURNAL OF MATERIALS RESEARCH 32.24(2017):4592-4604.