title: Ginzburg-Landau-type multiphase field model for competing fcc and bcc nucleation.
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.
authors.affiliation: Research Institute for Solid State Physics and Optics, Budapest, Hungary.
authors.forename: G I
authors.initials: GI
authors.lastname: Tóth
authors.forename: J R
authors.initials: JR
authors.lastname: Morris
authors.forename: L
authors.initials: L
authors.lastname: Gránásy