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Dislocation Core Structures in Nial.

Published online by Cambridge University Press:  28 February 2011

R. Pasianot  and
D. Farkas
R. Pasianot
Affiliation:
Department of Materials Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
D. Farkas
Affiliation:
Department of Materials Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
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Abstract

Since the early studies on bcc materials, computer simulation of dislocation core structures has been recognized as a valid means of understanding yield behavior with temperature. Many of today's high temperature ordered alloys do have yield anomalies and computer simulation of core structures is a basic ingredient in the corrent theories for the anomalous yield behavior in Ll2 alloys. In the case of B2 type alloys there are very few of these studies. The present work deals with computer simulation of core structures in B2 NiAl. An embedded atom type potential is used to simulate interactions and several slip systems are considered, particularly those having [100] and [111] slip vcctors that are the experimentally observed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 186: Symposium I – Alloy Phase Stability and Design , 1990 , 259
Copyright
Copyright © Materials Research Society 1991

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