| Ductility and strain hardening in gradient and lamellar structured materials | |
| Wu, Xiaolei1,2; Zhu, Yuntian3; Lu, Ke4 | |
| Corresponding Author | Wu, Xiaolei(xlwu@imech.ac.cn) |
| 2020-09-01 | |
| Source Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 186Pages:321-325 |
| Abstract | Low ductility has long been the bottleneck especially at high strength in metallic structured materials due to conventional forest hardening having little to no effect. Hetero-structuring is an emerging strategy producing superior strength and ductility combination. This Viewpoint article delineates mechanisms for strain hardening and plastic deformation in gradient and lamellar structured materials. Both have typical trans-scale grain hierarchy, leading to sharp mechanical incompatibility and consequent strain gradient at hetero-interfaces during plastic deformation. This induces heterogeneous deformation-induced hardening, along with recovered forest hardening, jointly to improve ductility. The heterogeneous deformation-related deformation physics sheds lights on the path to designing novel heterostructures particularly for large ductility at high strength. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| Keyword | Ductility Strain hardening Gradient structure Lamellar structure Heterogeneous structured materials |
| Funding Organization | Ministry of Science and Technology, PR China ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; NSFC ; CAS |
| DOI | 10.1016/j.scriptamat.2020.05.025 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Ministry of Science and Technology, PR China[2017YFA02044-01/-02/-03] ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; NSFC[11972350] ; CAS[XDB22040503] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000543035500062 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139487 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wu, Xiaolei |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China 3.North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Wu, Xiaolei,Zhu, Yuntian,Lu, Ke. Ductility and strain hardening in gradient and lamellar structured materials[J]. SCRIPTA MATERIALIA,2020,186:321-325. |
| APA | Wu, Xiaolei,Zhu, Yuntian,&Lu, Ke.(2020).Ductility and strain hardening in gradient and lamellar structured materials.SCRIPTA MATERIALIA,186,321-325. |
| MLA | Wu, Xiaolei,et al."Ductility and strain hardening in gradient and lamellar structured materials".SCRIPTA MATERIALIA 186(2020):321-325. |
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