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Gradient and lamellar heterostructures for superior mechanical properties

文献类型：期刊论文

作者Wu XL(武晓雷)2; Zhu Yuntian1
刊名MRS BULLETIN
出版日期2021-03-08
页码6
ISSN号0883-7694
关键词Microstructure Nanostructure Ductility Stress strain relationship Toughness
DOI10.1557/s43577-021-00056-w
通讯作者Wu, Xiaolei(xlwu@imech.ac.cn) ; Zhu, Yuntian(y.zhu@cityu.edu.hk)
英文摘要Heterostructured (HS) materials are a novel class of materials with mechanical properties that are superior over their conventional homogeneous counterparts. They are composed of HS zones with a dramatic difference in mechanical behaviors, which produces a synergistic effect on mechanical properties that are above the prediction by the rule-of-mixtures. Among all heterostructures, the two most studied are grain-size gradient structure and heterolamellar structure. These two heterostructures produce typical heterogeneous deformation during tensile deformation, producing long-range back stress in the soft zones and forward stress in the hard zones, which collectively produces hetero deformation-induced (HDI) stress to enhance the yield strength before yielding, and HDI hardening after yielding to retain ductility. In this article, we will focus on these two types of heterostructures. The issues, concerns, and progress are reviewed with the emphasis on the synergistic effect of mechanical properties, the fundamentals of several special plastic behaviors (e.g., strain gradient, HDI hardening and strain hardening), the plastic deformation mechanism, and the relationship between the microstructure and properties.
分类号二类/Q1
资助项目Ministry of Science and Technology, PR China[2017YFA02044-02/-03] ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; NSFC[11972350] ; NSFC[51931003] ; CAS[XDB22040503]
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:000626397000002
资助机构Ministry of Science and Technology, PR China ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; NSFC ; CAS
源URL[http://dspace.imech.ac.cn/handle/311007/86311]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.City Univ Hong Kong, Hong Kong, Peoples R China
2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing, Peoples R China;
推荐引用方式
GB/T 7714		 Wu XL,Zhu Yuntian. Gradient and lamellar heterostructures for superior mechanical properties[J]. MRS BULLETIN,2021:6.
APA 武晓雷,&Zhu Yuntian.(2021).Gradient and lamellar heterostructures for superior mechanical properties.MRS BULLETIN,6.
MLA 武晓雷,et al."Gradient and lamellar heterostructures for superior mechanical properties".MRS BULLETIN (2021):6.

入库方式： OAI收割

来源：力学研究所

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