Shear strengths of FCC-FCC cube-on-cube interfaces

SCRIPTA MATERIALIA

卷:130

Article

Liu, Xuying¹  Hao, Rui¹  Mao, Shimin¹  Dillon, Shen J.¹ 

[1] Univ Illinois, Dept Mat Sci & Engn, 1304 West Green St, Urbana, IL 61801 USA

关键词: Shear strength;    Interfaces;    Multilayers;    In situ;    Transmission electron microscopy;   

DOI  :  10.1016/j.scriptamat.2016.11.038

来源: Elsevier

【 摘 要 】

This work employs in-situ transmission electron microscopy based nanopillar compression of physical vapor deposited multilayers to measure the-interfacial shear strengths of model Ag-Pd, Ag-Au, Ag-Ni, Ag-Cu, and Cu-Ni (111) oriented cube-on-cube interfaces. The experimental trends are primarily rationalized by considering the coherency regimes. Coherent interfaces shear via slip transmission across them. Pillars containing semi coherent interfaces with <5% atomic misfit deform rather homogeneously. Interfaces exhibiting atomic misfit >5% shear locally and their interfacial shear strength decreases with increasing misfit. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free