期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.045701
关键词
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资金
- Hungarian Academy of Sciences [OTKA-K-62588]
- ESA [98059]
- Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy
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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