Pinning of grain boundary migration by a coherent particle

Nan Wang*, Youhai Wen, Long Qing Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We studied single-particle pinning of grain boundary (GB) migration during grain growth. A phase-field model was formulated to simulate the pinning by a coherent particle and validated quantitatively by comparison with analytical prediction. A study of GB migration velocity using this model revealed that second-phase coherent particles have a previously unknown restraining effect over the whole of the GB-particle interaction range, which is qualitatively different from the interaction between GB and incoherent particles.

Original languageEnglish
Pages (from-to)794-802
Number of pages9
JournalPhilosophical Magazine Letters
Volume94
Issue number12
DOIs
StatePublished - 2 Dec 2014
Externally publishedYes

Keywords

  • coherent precipitate
  • grain boundary pinning
  • grain growth
  • phase-field

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