Exceptional tensile properties under cryogenic temperature in heterogeneous laminates induced by non-uniform martensite transformation and strain delocalization

doi:10.1016/j.msea.2020.139780

IMECH-IR > 非线性力学国家重点实验室

	Exceptional tensile properties under cryogenic temperature in heterogeneous laminates induced by non-uniform martensite transformation and strain delocalization
	He JY(何金燕)1,2; Yuan FP(袁福平)1,2 ; Yang MX(杨沐鑫)1 ; Zhou LL(周玲玲)1; Jiao SH 3; Wu XL(武晓雷)1,2
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2020-07-22
卷号	791 页码:10
ISSN	0921-5093
摘要	In the present study, the heterogeneous low C steel/304 austenite stainless steel (SS) laminates were observed to have exceptional tensile properties under cryogenic temperature, i.e., the yield strength and the uniform elongation were found to be significantly elevated simultaneously compared to these under room temperature. The underlying deformation mechanisms have been revealed by a novel tensile testing method coupled with in-situ digital image correlation imaging under cryogenic environment, and subsequent microstructure observations. Strain localization was found to initiate from low C steel, propagate across the interface and then towards 304 SS side. While the formed localized strain zone (LSZ) was observed to be delocalized at larger tensile strain due to the propagation of LSZ towards the un-deformed region along the gage length. Martensite transformation was found to be concentrated in the LSZ of 304 SS to regain strain hardening ability and reduce severity of strain concentration. Strain partitioning between 304 SS and low C steel was found to be more significant in the LSZ than that out of the LSZ. The non-uniform martensite transformation along the gage length should be the origin for the strain delocalization in the LSZ, resulting in large ductility in the laminates under cryogenic temperature.
关键词	Twins Heterogeneous laminates Cryogenic tensile properties Martensite transformation Strain delocalization
DOI	10.1016/j.msea.2020.139780
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000551484000042
关键词[WOS]	AUSTENITIC STAINLESS-STEEL ; CHARPY IMPACT PROPERTIES ; INDUCED PLASTICITY STEEL ; MECHANICAL-PROPERTIES ; HIGH-STRENGTH ; DEFORMATION MECHANISMS ; GRADIENT PLASTICITY ; DUCTILITY ; MN ; DESIGN
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者	NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; National Key R&D Program of China[2017YFA0204402] ; National Natural Science Foundation of China[11672313] ; National Natural Science Foundation of China[11572328] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503]
论文分区	一类
力学所作者排名	1
RpAuthor	Yuan, Fuping
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/84746
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuan West Rd, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China; 3.Baoshan Iron & Steel Co Ltd, Baosteel Res Inst, Shanghai 201900, Peoples R China
推荐引用方式 GB/T 7714	He JY,Yuan FP,Yang MX,et al. Exceptional tensile properties under cryogenic temperature in heterogeneous laminates induced by non-uniform martensite transformation and strain delocalization[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,791:10.
APA	何金燕,袁福平,杨沐鑫,周玲玲,Jiao SH,&武晓雷.(2020).Exceptional tensile properties under cryogenic temperature in heterogeneous laminates induced by non-uniform martensite transformation and strain delocalization.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,791,10.
MLA	何金燕,et al."Exceptional tensile properties under cryogenic temperature in heterogeneous laminates induced by non-uniform martensite transformation and strain delocalization".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 791(2020):10.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Jp2020190.pdf（3946KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载