| Tensile Behaviors and Strain Hardening Mechanisms in a High-Mn Steel with Heterogeneous Microstructure | |
Zhang SD(张胜德)1,2 ; Liu YK(刘琰珂)1,2; Wang J(王建)1,2; Tan S(覃双)1; Wu XL(武晓雷)1,2; Yuan FP(袁福平)1,2
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| Corresponding Author | Qin, Shuang([email protected]) ; Yuan, Fuping([email protected]) |
| Source Publication | MATERIALS
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| 2022-05-01 | |
| Volume | 15Issue:10Pages:13 |
| Abstract | Heterogeneous structures with both heterogeneous grain structure and dual phases have been designed and obtained in a high-Mn microband-induced plasticity (MBIP) steel. The heterogeneous structures show better synergy of strength and ductility as compared to the homogeneous structures. Higher contribution of hetero-deformation induced hardening to the overall strain hardening was observed and higher density of geometrically necessary dislocations were found to be induced at various domain boundaries in the heterogeneous structures, resulting in higher extra strain hardening for the observed better tensile properties as compared to the homogeneous structures. MBIP effect is found to be still effective in the coarse austenite grains of heterogeneous structures, while the typical Taylor lattice structure and the formation of microband are not observed in the ultra-fine austenite grains of heterogeneous structures, indicating that decreasing grain size might inhibit the occurrence of microbands. High density of dislocation is also observed in the interiors of BCC grains, indicating that both phases are deformable and can accommodate plastic deformation. It is interesting to note that the deformation mechanisms are highly dependent on the phase and grain size for the present MBIP steel with heterogeneous structures. |
| Keyword | microband-induced plasticity heterogeneous structures steels strain hardening strengthening ductility |
| DOI | 10.3390/ma15103542 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000801732200001 |
| WOS Keyword | GRADIENT PLASTICITY ; INTERNAL-STRESSES ; ENTROPY ALLOY ; HIGH-STRENGTH ; DEFORMATION ; DUCTILITY ; GRAIN ; EVOLUTION ; METALS ; TWIN |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter |
| Funding Project | National Key R&D Program of China[2017YFA0204402] ; National Natural Science Foundation of China[11790293] ; China Postdoctoral Science Foundation[2021M703292] ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Qin, Shuang ; Yuan, Fuping |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89532 |
| 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 | Zhang SD,Liu YK,Wang J,et al. Tensile Behaviors and Strain Hardening Mechanisms in a High-Mn Steel with Heterogeneous Microstructure[J]. MATERIALS,2022,15,10,:13.Rp_Au:Qin, Shuang, Yuan, Fuping |
| APA | 张胜德,刘琰珂,王建,覃双,武晓雷,&袁福平.(2022).Tensile Behaviors and Strain Hardening Mechanisms in a High-Mn Steel with Heterogeneous Microstructure.MATERIALS,15(10),13. |
| MLA | 张胜德,et al."Tensile Behaviors and Strain Hardening Mechanisms in a High-Mn Steel with Heterogeneous Microstructure".MATERIALS 15.10(2022):13. |
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| Jp2022FA396_2022_Ten（6018KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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