Pinning force from multiple second-phase particles in grain growth

Nan Wang*, Youhai Wen, Long Qing Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A factor that can reduce particle pinning force significantly in grain growth is found when the grain-boundary is pinned by multiple particles. The pinning force, in this case, is a function of particle radius over inter-particle distance. A previously proposed phase-field model for particle pinning is used to validate this predicted pinning force reduction in two and three dimensions. When applied to coherent pinning particles, the same effect is observed in simulations. It is shown that, at application relevant high particle volume fraction, the average grain size is affected by this reduction of pinning force.

Original languageEnglish
Pages (from-to)81-85
Number of pages5
JournalComputational Materials Science
Volume93
DOIs
StatePublished - Oct 2014
Externally publishedYes

Keywords

  • Grain boundary
  • Grain growth
  • Particle pinning
  • Phase-field

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