Multi-scale study on the heterogeneous deformation behavior in duplex stainless steel

doi:10.1016/j.jmst.2020.09.023

IMR OpenIR

	Multi-scale study on the heterogeneous deformation behavior in duplex stainless steel
	Zhang, Xiao 1,2; Wang, Pei 1,2; Li, Dianzhong 1,2; Li, Yiyi 1,2
通讯作者	Wang, Pei(pwang@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
	2021-05-10
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	72 页码:180-188
摘要	The heterogeneous deformation behavior of austenite and ferrite in the 2205 duplex stainless steel was subjected to multiscale analysis based on the in situ synchrotron-based high energy X-ray diffraction, microscopic digital image correlation, electron backscatter diffraction, and transmission electron microscopy. It is found that the heterogeneous deformation triggers from the yielding of austenite. During this deformation stage, austenite experiences greater strain in the area near the phase boundaries because of the impeded function of the phase boundaries to dislocations. Owing to the relatively small difference in hardness between the constituent phases, the strain in austenite grains extends into the adjacent ferrite grains when entering into the ferrite yielding stage. In addition, the strain distribution of the austenite grains is more homogeneous than that of the ferrite grains because of the lower stacking fault energy of austenite, which results in a planar slip, and higher stacking fault energy in case of ferrite, causing cross slip. The interaction between austenite and ferrite becomes considerably obvious when the strain further increases after both constituent phases yielding because of the back stress and forward stress in austenite and ferrite, respectively, which are generated by the pile-up of the geometrically necessary dislocations. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Duplex stainless steel Heterogeneous deformation behavior Digital image correlation Back stress Geometrically necessary dislocation
资助者	Youth Innovation Promotion Association, CAS ; LiaoNing Revitalization Talents Program
DOI	10.1016/j.jmst.2020.09.023
收录类别	SCI
语种	英语
资助项目	Youth Innovation Promotion Association, CAS[Y201732] ; LiaoNing Revitalization Talents Program[XLYC1807022]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000636043600020
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：42[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/321006/162242
专题	中国科学院金属研究所
通讯作者	Wang, Pei; Li, Dianzhong
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, 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	Zhang, Xiao,Wang, Pei,Li, Dianzhong,et al. Multi-scale study on the heterogeneous deformation behavior in duplex stainless steel[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,72:180-188.
APA	Zhang, Xiao,Wang, Pei,Li, Dianzhong,&Li, Yiyi.(2021).Multi-scale study on the heterogeneous deformation behavior in duplex stainless steel.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,72,180-188.
MLA	Zhang, Xiao,et al."Multi-scale study on the heterogeneous deformation behavior in duplex stainless steel".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 72(2021):180-188.