Phase-field simulation of D0 3 -type antiphase boundary migration in Fe 3 Al with vacancy and solute segregation

Yuichiro Koizumi, Samuel M. Allen, Masayuki Ouchi, Yoritoshi Minamino, Akihiko Chiba

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Segregation of solute atoms and vacancies to migrating D03-type antiphase boundaries (APBs) in Fe3Al of the stoichirometric and an Al-rich compositions has been investigated in detail by a phase-field method developed in the previous study [Koizumi et al. Acta Mater 2009;57:3039] focusing on the quantitative relationship among the segregation, APB energy, driving-force, drag-force and APB mobility. It has been revealed that the drag-force by solute segregation depends considerably on the alloy composition and is responsible for the significant composition dependence of the migration kinetics of D03-APB whereas the composition dependences of driving-force and mobility are negligibly small.

Original languageEnglish
Title of host publicationSolid-Solid Phase Transformations in Inorganic Materials
PublisherTrans Tech Publications Ltd
Pages1313-1319
Number of pages7
ISBN (Print)9783037851432
DOIs
Publication statusPublished - 2011 Jan 1

Publication series

NameSolid State Phenomena
Volume172-174
ISSN (Print)1012-0394

Keywords

  • Intermetallics
  • Order-disorder transformation
  • Phase-field method
  • Solute-drag

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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