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Ductility and strain hardening in gradient and lamellar structured materials
Wu, Xiaolei; Zhu, Yuntian; Lu, Ke
2020-09-01
Source PublicationSCRIPTA MATERIALIA
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.
DOI10.1016/j.scriptamat.2020.05.025
WOS IDWOS:000543035500062
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://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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