Order-disorder Transition of Binary Alloys

Evaluation of Entropy for Substitutional Alloys by Model

Abstract

Various elementary models proposed to understand the order-disorder transition behavior of binary substitutional alloys are reviewed. These models are evaluated for binary body- and face-centered cubic lattices by comparing the calculated entropies with the experimental ones. Among these models, the cluster variation method proposed by Kikuchi is a good model to explain the order-disorder transition of binary alloys.