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Journal of Materials Science

, Volume 32, Issue 21, pp 5797–5804 | Cite as

Computer simulation of A2/B2 second-order phase transition based upon the Khachaturyan diffusion equation

  • A. M MEBED
  • T KOYAMA
  • T MIYAZAKI
Article

Abstract

A computer simulation, based on the Khachaturyan diffusion equation, is presented to develop the kinetics of the morphological evolution of the A2/B2 second-order phase transition in a binary solid solution. The evolution of the occupation probability, as a function of composition, shows a good similarity to the actual micrographs experimentally obtained based on the macroscopic composition gradient method. These results are used in parallel with the results of the evolution of the long-range order parameter as a function of the ageing time, to verify a new concept of the ordering behaviour inside the ordered phase.

Keywords

Ageing Time Lattice Site Transition Line Computational Cell Occupation Probability 

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Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • A. M MEBED
    • 1
  • T KOYAMA
    • 1
  • T MIYAZAKI
    • 1
  1. 1.Department of Materials Science and EngineeringNagoya Institute of TechnologyNagoyaJapan

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