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Updated: Jun 23, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Quantitative phase-field modeling for dilute alloy solidification involving diffusion in the solid.
Munekazu Ohno1, Kiyotaka Matsuura
1Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University, North 13 West 8, Sapporo 060-8628, Japan.
This study extends the antitrapping current scheme for phase-field models to binary alloy solidification. The new model accurately handles solid diffusion and eliminates spurious effects for reliable dendrite growth simulations.
Area of Science:
- Materials Science
- Computational Physics
- Alloy Solidification
Background:
- Phase-field models are crucial for simulating material microstructures.
- Existing models often struggle with anomalous interface effects in binary alloys.
- Solid diffusion significantly impacts solidification morphology.
Purpose of the Study:
- To extend the antitrapping current scheme for quantitative phase-field modeling.
- To accurately incorporate diffusion in the solid phase for binary alloy solidification.
- To eliminate spurious effects in phase-field simulations.
Main Methods:
- Asymptotic analysis to identify constraints in phase-field interpolating functions.
- Development of an antitrapping current term for two-sided interfaces.
- Convergence testing with respect to interface thickness.
Main Results:
- Identified five essential constraints for interpolating functions in phase-field models.
- Developed a robust antitrapping current term that removes anomalous interface effects.
- Demonstrated excellent model performance through convergence tests on isothermal dendrite growth.
Conclusions:
- The enhanced phase-field model accurately simulates binary alloy solidification with solid diffusion.
- The novel antitrapping current scheme effectively eliminates spurious effects.
- The model shows excellent convergence and performance for dendrite growth.
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