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On the Interactions Between Lattice Dislocations and Grain Boundaries in Ordered Compounds

Published online by Cambridge University Press:  01 January 1992

J. Th. M. De Hosson ,
B.J. Pestman  and
V. Vitek
J. Th. M. De Hosson
Affiliation:
Department of Applied Physics, University of Groningen, Zernike Complex, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
B.J. Pestman
Affiliation:
Department of Applied Physics, University of Groningen, Zernike Complex, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
V. Vitek
Affiliation:
Department of Materials Science & Engineering, University of Pennsylvania, Philadelphia, PA 19104, U.S.A.
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Abstract

The interaction of 1/2<1 1 0> screw dislocations with symmetric [1 1 0] tilt boundaries was investigated by atomistic simulations using many-body potentials representing ordered compounds. The calculations were performed with and without an applied shear stress. The observations were: absorption into the grain boundary, attraction of a lattice Shockley partial dislocation towards the grain boundary and transmission through the grain boundary under the influence of a shear stress.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 299
Copyright
Copyright © Materials Research Society 1995

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