Interfacial Structures Governed Plastic Deformation Behaviors in Metallic Multilayers

被引：0
作者：
Ming-Zhen Wei [1 ,2 ]
Zhen-Hua Cao [1 ]
Xiang-Kang Meng [1 ]
机构：
[1] Institute of Materials Engineering, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University
[2] Department of Physics, School of Science, Linyi University
来源：
ActaMetallurgicaSinica(EnglishLetters) | 2016年 / 29卷 / 02期
基金：
中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;
关键词：
Metallic multilayers; Plastic deformation; Interfacial structures; Strengthening mechanism;
D O I：
暂无
中图分类号：
TB383.2 [];
学科分类号：
070205 ; 080501 ; 1406 ;
摘要：
In this work, we have investigated the mechanical properties of Cu/Ta, Ag/Cu and Ag/Nb multilayers with different heterogeneous interfaces. The results suggest that when individual layer thickness(h) is larger than 5–10 nm, the hardness/strength of three different multilayer systems has the similar length scale effect with decreasing layer thickness,while when h B 5 nm, the three multilayer systems show remarkably different plastic deformation behaviors. The strength curves exhibit the variation trends of unchanging, softening and increasing corresponding to Cu/Ta, Ag/Cu and Ag/Nb multilayers, respectively. The microstructure analysis shows that three kinds of multilayers have totally different interfacial structures, which lead to the different strengthening or softening mechanisms.
引用
收藏
页码：199 / 204
页数：6
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