方法对比
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| 相场模型× | CALPHAD× | |
|---|---|---|
| 领域 | 材料科学 | 材料科学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1958 | 1970 |
| 提出者≠ | John W. Cahn | Larry Kaufman |
| 类型≠ | Simulation method | Computational method |
| 开创性文献≠ | Cahn, J. W. (1958). Free energy of a nonuniform system: Interfacial free energy. The Journal of Chemical Physics, 28(2), 258-267. DOI ↗ | Kaufman, L., & Bernstein, H. (1970). Computer Calculation of Phase Diagrams. Academic Press. link ↗ |
| 别名 | phase-field method, diffuse interface method | CALPHAD method, computational thermodynamics |
| 相关 | 3 | 3 |
| 摘要≠ | Phase-Field Modeling (PFM) is a continuum computational method for simulating microstructure evolution, phase transitions, and interfacial dynamics without explicitly tracking moving boundaries. Developed from Cahn-Ginzburg-Landau theory in the 1950s, PFM represents distinct phases through continuous order parameters that vary smoothly over diffuse interfaces. This approach elegantly handles topological changes (nucleation, coalescence, pinch-off), complex interface geometries, and strongly coupled multiphysics. It is the dominant method for studying dendritic growth, spinodal decomposition, grain evolution, and reactive transport in materials science. | CALPHAD (CALculation of PHAse Diagrams) is a computational method for predicting thermodynamic equilibrium properties and phase diagrams of multicomponent alloys. Pioneered by Larry Kaufman in 1970, CALPHAD combines experimental and computational data to assess thermodynamic properties of phases and subsequently predict equilibrium conditions. It is the standard methodology in physical metallurgy and materials design for alloy development, process optimization, and understanding phase stability. |
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