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A Monte-Carlo Study of B2 Ordering and Precipitation on a Bcc Lattice

Published online by Cambridge University Press:  21 February 2011

M. Athènes ,
P. Bellon ,
G. Martin  and
F. Haider
M. Athènes
Affiliation:
SRMP/CEREM, CE Saclay, 91191 Gif-sur-Yvette, France.
P. Bellon
Affiliation:
SRMP/CEREM, CE Saclay, 91191 Gif-sur-Yvette, France.
G. Martin
Affiliation:
SRMP/CEREM, CE Saclay, 91191 Gif-sur-Yvette, France.
F. Haider
Affiliation:
University of Augsburg, D86135 Augsburg, Germany.
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Abstract

Atomistic Monte-Carlo simulations of precipitation and B2 ordering in a binary alloy on a BCC lattice via vacancy mechanism are presented. Evolution of simulated patterns is in good agreement with the experimentally observed morphologies. Moreover, it is observed that the very early stages of ordering are strongly dependent on atomic mobility parameters. Depending on the relative exchange frequency of vacancies with A and B atoms, two extreme regimes oiordering are identified, leading either to localized or delocalized ordering.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 398: Symposium C – Thermodynamics and Kinetics of Phase Transformations , 1995 , 545
Copyright
Copyright © Materials Research Society 1998

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References

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