Theoretical investigation of coarsening process of L10-ordered domain based on phase field method and cluster variation method

Munekazu Ohno, Tetsuo Mohri

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

A hybridized calculation of Phase Field Method and Cluster Variation Method is applied to investigate the relaxation process of Long-Range-Order parameter (LRO) originating from competitive growth of ordered domains. It is shown that the coarsening process proceeds by both the curvature-driven growth and coalescence among in-phase ordered domains. In the early annealing period, an average radius of ordered domains increases proportional to t1/2 as predicted by the curvature-driven growth. In the later period, however, a deviation from this relation is manifested by coalescence process. The LRO relaxation kinetics largely depends on the frequency of coalescence event.

Original languageEnglish
Pages (from-to)2189-2192
Number of pages4
JournalMaterials Transactions
Volume43
Issue number9
DOIs
Publication statusPublished - 2002 Sep

Keywords

  • Anti-phase boundary
  • Cluster variation method
  • Coalescence of ordered domains
  • Coarsening of ordered domain
  • Curvature-driven growth
  • Long-rang-order parameter
  • Order-order relaxation
  • Phase field method

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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