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Phase Field Methods and Dislocationss

Published online by Cambridge University Press:  21 March 2011

D. Rodney  and
A. Finel
D. Rodney
Affiliation:
Laboratoire d'Etude des microstrctures, CNRS-ONERA, B.P. 72, 92322 Chatillon Cedex, France
A. Finel
Affiliation:
Laboratoire d'Etude des microstrctures, CNRS-ONERA, B.P. 72, 92322 Chatillon Cedex, France
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Abstract

We present a general formalism for incorporating dislocations in Phas Field methods. This formalism is based on the elastic equiva;ence betweem a dislocation loop and a platelet inclusion of specific stress-free strain related to the loop Burgers vector and normal. Dislocations are thus treated as platelet inclusions and may be coupled dynamically to any other field such as a concentration field. The method is illustrated through the simulation of a Frank-Read source and of the shrinkage of a loop in presence of a concentration field.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 652: Symposium Y – Influences of Interface & Dislocation Behavior on Microstructure Evolution , 2000 , Y4.9
Copyright
Copyright © Materials Research Society 2001

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References

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