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Summary: 1
Transmission of a Screw Dislocation
Across a Coherent, Nonslipping Interface
Yao Shen(a*)
and Peter M. Anderson(b)
(a)
School of Materials Science and Engineering, Shanghai Jiao Tong University
800 Dongchuan Road, Shanghai 200240, P.R. China
(b)
Department of Materials Science and Engineering, Ohio State University
2041 College Road, Columbus, OH 43210, USA
*Corresponding author. Tel: 86-21-54747411, Fax: 86-21-62932587
Email: yaoshen2001@yahoo.com (Yao Shen)
Keywords: Dislocations (A), Layered material (B), Metallic materials (B), Energy methods (B),
Transmission across interfaces
Abstract
Current research on nanocrystalline metals and nanoscale multilayer thin films suggests
extraordinary plastic strength is due to confinement of slip to individual grains or layers. To
assess the magnitude of confinement, a Peierls model of slip transmission of a screw dislocation
across a coherent, non-slipping interface is presented. The results reflect that large interfacial
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