Journal
MECHANICS RESEARCH COMMUNICATIONS
Volume 37, Issue 3, Pages 315-319Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mechrescom.2010.03.007
Keywords
Nanomaterials; Metallic composites; Interfaces; Dislocations; Atomistic simulation; Nanoindentation
Categories
Funding
- US Department of Energy [DE-FG02-07ER46435]
Ask authors/readers for more resources
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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available