| 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 SH3; Wu XL(武晓雷)1,2
| |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 2020-07-22 | |
| Volume | 791Pages:10 |
| ISSN | 0921-5093 |
| Abstract | 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. |
| Keyword | Twins Heterogeneous laminates Cryogenic tensile properties Martensite transformation Strain delocalization |
| DOI | 10.1016/j.msea.2020.139780 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000551484000042 |
| WOS Keyword | AUSTENITIC STAINLESS-STEEL ; CHARPY IMPACT PROPERTIES ; INDUCED PLASTICITY STEEL ; MECHANICAL-PROPERTIES ; HIGH-STRENGTH ; DEFORMATION MECHANISMS ; GRADIENT PLASTICITY ; DUCTILITY ; MN ; DESIGN |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | 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] |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Yuan, Fuping |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/84746 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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.Rp_Au:Yuan, Fuping |
| 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2020190.pdf（3946KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment