Journal
CRYSTALS
Volume 12, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/cryst12091288
Keywords
dendrites; stable growth; selection criterion; solvability theory; morphological stability; forced convective flow; undercooling balance; multicomponent melt
Funding
- Russian Science Foundation [20-61-46013]
- Foundation for the Advancement of Theoretical Physics and Mathematics BASIS [21-1-3-11-1]
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This study investigates the stable growth mode of a single dendritic crystal solidifying in an undercooled ternary melt by considering a forced convective flow. The steady-state temperature, solute concentrations, and fluid velocity components are determined for both two- and three-dimensional problems. The stability criterion and the total undercooling balance are derived, taking into account the surface tension anisotropy at the solid-melt interface. The theoretical findings are compared with experimental data and phase-field modeling for the Ni98Zr1Al1 alloy.
A stable growth mode of a single dendritic crystal solidifying in an undercooled ternary (multicomponent) melt is studied with allowance for a forced convective flow. The steady-state temperature, solute concentrations and fluid velocity components are found for two- and three-dimensional problems. The stability criterion and the total undercooling balance are derived accounting for surface tension anisotropy at the solid-melt interface. The theory under consideration is compared with experimental data and phase-field modeling for Ni98Zr1Al1 alloy.
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