Effect of second-phase particle morphology on grain growth kinetics

Kunok Chang, Weiming Feng, Long Qing Chen

Research output: Contribution to journalArticle

104 Scopus citations

Abstract

Second-phase particles are often employed to inhibit grain growth in polycrystalline metals and ceramics. In this work, we studied the effect of second-phase particle morphology on the effectiveness of inhibiting grain boundary migration using the phase-field method. We employed a multi-order parameter phase-field model in combination with an efficient memory allocation strategy which allows large-scale and coalescence-free grain growth simulations. We analyzed the dependence of pinning forces on the particle size and shape, and performed computer simulations of grain growth in the presence of second-phase particles with different sizes and varying aspect ratios. We also discuss the relationship between the pinned grain size and size distributions.

Original languageEnglish (US)
Pages (from-to)5229-5236
Number of pages8
JournalActa Materialia
Volume57
Issue number17
DOIs
StatePublished - Oct 1 2009

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

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