| Simultaneous Improvement of Yield Strength and Ductility at Cryogenic Temperature by Gradient Structure in 304 Stainless Steel | |
Tan S(覃双)1 ; Yang MX(杨沐鑫)1; Yuan FP(袁福平)1,2; Wu XL(武晓雷)1,2
| |
| Corresponding Author | Yang, Muxin(mxyang@lnm.imech.ac.cn) ; Yuan, Fuping(fpyuan@lnm.imech.ac.cn) |
| Source Publication | NANOMATERIALS
 |
| 2021-07-01 | |
| Volume | 11Issue:7Pages:12 |
| Abstract | The tensile properties and the corresponding deformation mechanism of the graded 304 stainless steel (ss) at both room and cryogenic temperatures were investigated and compared with those of the coarse-grained (CGed) 304 ss. Gradient structures were found to have excellent synergy of strength and ductility at room temperature, and both the yield strength and the uniform elongation were found to be simultaneously improved at cryogenic temperature in the gradient structures, as compared to those for the CG sample. The hetero-deformation-induced (HDI) hardening was found to play a more important role in the gradient structures as compared to the CG sample and be more obvious at cryogenic temperature as compared to that at room temperature. The central layer in the gradient structures provides stronger strain hardening during tensile deformation at both temperatures, due to more volume fraction of martensitic transformation. The volume fraction of martensitic transformation in the gradient structures was found to be much higher at cryogenic temperature, resulting in a much stronger strain hardening at cryogenic temperature. The amount of martensitic transformation at the central layer of the gradient structures is observed to be even higher than that for the CG sample at cryogenic temperature, which is one of the origins for the simultaneous improvement of strength and ductility by the gradient structures at cryogenic temperature. |
| Keyword | gradient structure ductility strain hardening martensitic transformation hetero-de-formation-induced hardening |
| DOI | 10.3390/nano11071856 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000676853900001 |
| WOS Keyword | AUSTENITIC STAINLESS-STEEL ; MECHANICAL-PROPERTIES ; MARTENSITE FORMATION ; DISLOCATION DENSITY ; DEFORMATION ; PLASTICITY ; TENSILE ; METALS ; MICROSTRUCTURES ; STABILIZATION |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| Funding Project | 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[52071326] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503] |
| Funding Organization | NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Yang, Muxin ; Yuan, Fuping |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/87072 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst 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 |
| Recommended Citation GB/T 7714 | Tan S,Yang MX,Yuan FP,et al. Simultaneous Improvement of Yield Strength and Ductility at Cryogenic Temperature by Gradient Structure in 304 Stainless Steel[J]. NANOMATERIALS,2021,11,7,:12. |
| APA | 覃双,杨沐鑫,袁福平,&武晓雷.(2021).Simultaneous Improvement of Yield Strength and Ductility at Cryogenic Temperature by Gradient Structure in 304 Stainless Steel.NANOMATERIALS,11(7),12. |
| MLA | 覃双,et al."Simultaneous Improvement of Yield Strength and Ductility at Cryogenic Temperature by Gradient Structure in 304 Stainless Steel".NANOMATERIALS 11.7(2021):12. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2021F250.pdf（57205KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment