Non-Equilibrium Crystallization of a Eutectic Alloy - Mathematical Model

Abstract:

The process of a eutectic alloy crystallization is considered when the eutectic alloy is instantly cooled from the liquid state to below the eutectic transformation temperature. The features of such crystallization are considered. The mathematical model of the process is constructed that takes into account the nucleation of new phases particles, their growth and the associated change the concentrations of the melt components. The nuclei of new phases are supposed be spherical. As they grow, they come into contact and become lamellar. The developed approach was applied to the amorphization process of the eutectic alloys. An amorphous state has been reached if the clusters of solid phases can’t grow above nanosize. The model allows researching the necessary amorphization conditions.

• Periodical: Materials Science Forum (Volume 946)
• Pages: 417-422
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.946.417
• Online since: February 2019
• Authors: Alexander D. Drozin*, Maxim V. Dudorov, Natalia M. Yaparova
• Keywords: Eutectic, Mathematical Model, Nanoparticle Growth, Non-Equilibrium, Nucleation

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