Ginzburg-Landau-type multiphase field model for competing fcc and bcc nucleation.
نویسندگان
چکیده
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.
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ورودعنوان ژورنال:
- Physical review letters
دوره 106 4 شماره
صفحات -
تاریخ انتشار 2011