期刊
MECHANICS RESEARCH COMMUNICATIONS
卷 37, 期 3, 页码 315-319出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mechrescom.2010.03.007
关键词
Nanomaterials; Metallic composites; Interfaces; Dislocations; Atomistic simulation; Nanoindentation
类别
资金
- US Department of Energy [DE-FG02-07ER46435]
Dislocation-interface interactions are investigated in a Ni-Cu bilayer using molecular mechanics simulations. Nanoindentation model is used to generate dislocations in the top Ni layer and study their propagation through coherent (1 1 1) fcc interface into Cu. Although dislocations do propagate through, the interface acts as a strong barrier to gliding dislocations and contributes considerably to the overall strain hardening of the nanolayered material. Mechanisms of dislocation-interface interactions are analyzed. In particular, spreading of a dissociated dislocation core at the interface and interfacial stacking fault formation are investigated along with their effect on the material strengthening. Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据