Ductility and strain hardening in gradient and lamellar structured materials

doi:10.1016/j.scriptamat.2020.05.025

IMR OpenIR

	Ductility and strain hardening in gradient and lamellar structured materials
	Wu, Xiaolei; Zhu, Yuntian; Lu, Ke
	2020-09-01
Source Publication	SCRIPTA MATERIALIA
Volume	186 Pages: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.
DOI	10.1016/j.scriptamat.2020.05.025
WOS ID	WOS:000543035500062
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/82590
Collection	中国科学院金属研究所
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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