Computer simulation of phase decomposition in the regular solid solution based upon the non-linear diffusion equation

Akira Takeuchi, Toshiyuki Koyama, Takao Kozakai, Toru Miyazaki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A new Fourier expression of the Cahn-Hilliard's flux equation is proposed, where the regular solution approximation is adopted as the chemical free energy of solid solution and the mobility is defined as a function of solute composition. The results of the computer simulation of phase decomposition, derived on the basis of the new method, are in accord with the prediction from the phase diagram which is theoretically given by the free energy of the regular solution approximation. This calculation method is applicable to the actual alloy systems, because the phase diagrams have usually been evaluated, based on the regular solution or the modified regular solution model.

Original languageEnglish
Pages (from-to)1177-1182
Number of pages6
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume54
Issue number11
DOIs
Publication statusPublished - 1990

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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