Paper Title:
Application of Continuous Displacement Cluster Variation Method to Study Phase Equilibria
  Abstract

Cluster Variation Method (CVM) has been widely recognized as one of the most reliable theoretical tools to study phase equilibria in metallic alloy systems. The conventional CVM, however, does not allow atomic local displacements and, therefore, calculated results often encounter various inconveniences such as the overestimation of transition temperatures. Continuous Displacement Cluster Variation Method (CDCVM) was proposed to circumvent such deficiencies of the conventional CVM. Preliminary studies on an order-disorder phase diagram based on CDCVM indicate that the transition temperature is shifted downward reproducing experimental tendencies. In the present study, lattice thermal vibration effects are also incorporated through Morse potential. It is concluded that the local lattice distortion effects are quite effective to reduce the transition temperature.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
1496-1499
DOI
10.4028/www.scientific.net/MSF.654-656.1496
Citation
T. Mohri, "Application of Continuous Displacement Cluster Variation Method to Study Phase Equilibria", Materials Science Forum, Vols. 654-656, pp. 1496-1499, 2010
Online since
June 2010
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Price
$32.00
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