Ductility and strain hardening in gradient and lamellar structured materials

doi:10.1016/j.scriptamat.2020.05.025

CORC > 金属研究所 > 中国科学院金属研究所

	Ductility and strain hardening in gradient and lamellar structured materials
	Wu, Xiaolei 1,4; Zhu, Yuntian 3; Lu, Ke 2
刊名	SCRIPTA MATERIALIA
	2020-09-01
卷号	186 页码:321-325
关键词	Ductility Strain hardening Gradient structure Lamellar structure Heterogeneous structured materials
ISSN号	1359-6462
DOI	10.1016/j.scriptamat.2020.05.025
通讯作者	Wu, Xiaolei(xlwu@imech.ac.cn)
英文摘要	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.
资助项目	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研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000543035500062
资助机构	Ministry of Science and Technology, PR China ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; NSFC ; CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139486]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wu, Xiaolei
作者单位	1.Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China
推荐引用方式 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.