Ginzburg-Landau-type multiphase field model for competing fcc and bcc nucleation

G. I. Tóth, J. R. Morris, L. Gránásy

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Abstract

We address crystal nucleation and fcc-bcc phase selection in alloys using a multiphase field model that relies on Ginzburg-Landau free energies of the liquid-fcc, liquid-bcc, and fcc-bcc subsystems, and determine the properties of the nuclei as a function of composition, temperature, and structure. With a realistic choice for the free energy of the fcc-bcc interface, the model predicts well the fcc-bcc phase-selection boundary in the Fe-Ni system.

Original languageEnglish
Article number045701
JournalPhysical review letters
Volume106
Issue number4
DOIs
Publication statusPublished - Jan 24 2011

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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