НАПРАВЛЕННОЕ ЗАТВЕРДЕВАНИЕ С ДВУХФАЗНОЙ ЗОНОЙ С УЧЕТОМ ЗАВИСИМОСТИ ПЛОТНОСТИ ЖИДКОЙ ФАЗЫ ОТ ТЕМПЕРАТУРЫ И КОНЦЕНТРАЦИИ ПРИМЕСИ

Translated title of the contribution: DIRECTIONAL SOLIDIFICATION WITH A TWO-PHASE ZONE WITH ALLOWANCE FOR THE DEPENDENCE OF DENSITY OF THE LIQUID PHASE ON TEMPERATURE AND IMPURITY CONCENTRATION

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Abstract

A quasi-stationary process of directional crystallization of a binary melt with a two-phase region has been studied theoretically. The model takes into account the dependence of the melt density on temperature and impurity concentration. Exact analytical solutions of a nonlinear system of heat and mass transfer equations are obtained. The impurity concentration and temperature profiles, the crystallization rate, and the fraction of the solid phase in the two-phase region are determined. It is shown that with an increase of the initial impurity concentration in the melt, the width of the two-phase region increases.
Translated title of the contributionDIRECTIONAL SOLIDIFICATION WITH A TWO-PHASE ZONE WITH ALLOWANCE FOR THE DEPENDENCE OF DENSITY OF THE LIQUID PHASE ON TEMPERATURE AND IMPURITY CONCENTRATION
Original languageRussian
Pages (from-to)37-45
Number of pages8
JournalРасплавы
Issue number1
DOIs
Publication statusPublished - 2020

GRNTI

  • 29.19.00

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  • VAK List

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