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Ductility and strain hardening in gradient and lamellar structured materials
Wu, Xiaolei1,2; Zhu, Yuntian3; Lu, Ke4
Corresponding AuthorWu, Xiaolei(xlwu@imech.ac.cn)
2020-09-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume186Pages:321-325
AbstractLow 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.
KeywordDuctility Strain hardening Gradient structure Lamellar structure Heterogeneous structured materials
Funding OrganizationMinistry of Science and Technology, PR China ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; NSFC ; CAS
DOI10.1016/j.scriptamat.2020.05.025
Indexed BySCI
Language英语
Funding ProjectMinistry 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 AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000543035500062
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139487
Collection中国科学院金属研究所
Corresponding AuthorWu, Xiaolei
Affiliation1.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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