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Numerical Simulations of the Lattice Stability of β-Phase Hume-Rothery “ALLOYS”

Published online by Cambridge University Press:  28 February 2011

M. De Graef ,
B. Verlinden  and
L. Delaey
M. De Graef
Affiliation:
Department of Metallurgy and Materials Engineering, Catholic University of Leuven, de Croylaan 2, B-3030 Heverlee, Belgium
B. Verlinden
Affiliation:
Department of Metallurgy and Materials Engineering, Catholic University of Leuven, de Croylaan 2, B-3030 Heverlee, Belgium
L. Delaey
Affiliation:
Department of Metallurgy and Materials Engineering, Catholic University of Leuven, de Croylaan 2, B-3030 Heverlee, Belgium
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Abstract

A new empirical potential model is proposed which can be used for a full fit to second and third order elastic moduli. The lattice stability of the β-phase of Cu-based martensitic alloys is known to depend strongly on these moduli. The pair potential is then used to compute the eigenvalues of the effective elastic moduli tensor for different deformations such as uniaxial z-distortion and (110)[110] shear. The results of these simulations are compared with the predictions of linear elasticity theory.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 141: Symposium T – Atomic Scale Calculations in Materials Science , 1988 , 189
Copyright
Copyright © Materials Research Society 1989

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