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A New Parametric Method for the Analysis of Ordering Configurations in Binary Alloys

Published online by Cambridge University Press:  26 February 2011

T.W. Staley  and
R.J. Matyi
T.W. Staley
Affiliation:
Materials Science Program, University of Wisconsin, Madison, WI 53706
R.J. Matyi
Affiliation:
also Dept. of Materials Science and Engineering
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Abstract

In ordering alloy systems, the overall long-range order parameter does not distinguish the degree to which the component structures are delocalized for different configurations of equal randomness. We define a new parameter, which is sensitive to such differences, by considering the short-range order parameters as a set of statistical moments for geometric variation in the crystal. A computer model has been developed which uses this parameter to analyze finite alloy systems for configurational preferences by a Monte Carlo method. Initial studies have established the parametric range as a function of LRO and nonstoichiometry. Qualitative results correspond well to predictions for ideal systems.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 278: Symposium W – Computational Methods in Materials Science , 1992 , 377
Copyright
Copyright © Materials Research Society 1992

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