Phase-field simulation of antiphase boundary migration in intermetallic compounds with solute and vacancy segregation

Yuichiro Koizumi, Tatsuya Yokoi, Masayuki Ouchi, Yoritoshi Minamino, Yoshiya Masato, Samuel M. Allen

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

1 Citation (Scopus)

Abstract

The effects of solute and vacancy segregation on APB migration in Ti 3Al, and their dependence on composition, have been investigated by using a phase-field simulation in which vacancy distribution is taken into account. Al-atoms are depleted and vacancies segregate at APB in stoichiometric Ti3Al (Ti-25Al), whereas Al-atoms segregate and vacancies are depleted in Alrich one (Ti-28Al). The simulation indicates that APB in Ti 3Al migrates much faster in Ti-25Al than in Ti-28Al with the effect of vacancy segregation whereas it migrates slightly faster in Ti28Al than in Ti-25Al in the absence of the effect of vacancy segregation.

Original languageEnglish
Title of host publicationIntermetallic-Based Alloys for Structural and Functional Applications
Pages437-442
Number of pages6
DOIs
Publication statusPublished - 2011
Event2010 MRS Fall Meeting - Boston, MA, United States
Duration: 2010 Nov 292010 Dec 3

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1295
ISSN (Print)0272-9172

Other

Other2010 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period10/11/2910/12/3

ASJC Scopus subject areas

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

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