Heterogeneous precipitation on dislocations: effect of the elastic field on precipitate morphology

Celine Hin, Yves Brechet, Philippe Maugis, Frederic Soisson

Research output: Contribution to journalArticleResearchpeer-review

13 Citations (Scopus)

Abstract

The shape of a coherent non-misfitting FeC precipitate formed from solute atoms that interact with a dislocation stress field was studied using kinetic Monte Carlo simulation on a rigid lattice. The system studied is a model for binary alloys with an interstitial alloying element similar to Fe-C. The interaction with the dislocation comprises both a short-range chemical term and a long-range deformation field. The effect of each of these terms on precipitate shapes for different C supersaturations was investigated. A simple analytical model is proposed to rationalize the results obtained in the atomistic simulations.

Original languageEnglish
Pages (from-to)1555-1567
Number of pages13
JournalPhilosophical Magazine
Volume88
Issue number10
DOIs
Publication statusPublished - Apr 2008
Externally publishedYes

Keywords

  • Dislocation
  • Elastic field
  • Equilibrium shape of precipitate
  • Monte Carlo

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