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Interaction between Lattice Dislocations and Grain Boundaries in Ordered Compounds: Theory and Experiment

Published online by Cambridge University Press:  28 February 2011

B. J. Pestman ,
J. Th. M. De Hosson ,
V. Vitek ,
F.D. Tichelaar  and
F.W. Schapink
B. J. Pestman
Affiliation:
Department of Applied Physics, Materials Science Centre, University of Groningen, Nijenborgh 18, 9747 AG Groningen, The Netherlands
J. Th. M. De Hosson
Affiliation:
Department of Applied Physics, Materials Science Centre, University of Groningen, Nijenborgh 18, 9747 AG Groningen, The Netherlands
V. Vitek
Affiliation:
Department of Materials Science & Engineering, University of Pennsylvania, Philadelphia, PA 19104, U.S.A
F.D. Tichelaar
Affiliation:
Department of Metallurgy, Technological University of Delft, Rotterdamseweg 137, 2628 AL Delft, The Netherlands
F.W. Schapink
Affiliation:
Department of Metallurgy, Technological University of Delft, Rotterdamseweg 137, 2628 AL Delft, The Netherlands
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Abstract

The interaction between a screw dislocation and symmetric [1 1 0] tilt boundaries under the influence of an applied shear stress was investigated by atomistic simulation. Many-body potentials representing Cu and Ni3Al were used for the description of the interatomic forces. A comparison will be made with in-situ observations in a transmission electron microscope of the interaction of screw dislocations with a coherent twin boundary.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 186: Symposium I – Alloy Phase Stability and Design , 1990 , 253
Copyright
Copyright © Materials Research Society 1991

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