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A MATHEMATICAL MODEL OF HEAT AND MASS TRANSFER DURING ZONE MELTING OF TiAl INTERMETALLIC COMPOUNDS WITHOUT CRUCIBLE

S. M. Ganina, V. P. Ginkin, K. G. Chernov
VANT. Ser.: Mat. Mod. Fiz. Proc 2014. Вып.4. С. 35-43.

The paper presents the results of mathematical modeling of the process of heat and mass transfer during recrystallization of an intermetallic TiAl (Nb,Cr,Zr) specimen by vertical zone melting without crucible. The calculations were done using a non-equilibrium mathematical model of multi-component melt hardening extended from the binary melt hardening model proposed earlier. The aim of the work was to establish correlations between process conditions of crystallization and microstructure of the resulting ingots.

Keywords: crystallization, multicomponent melt, two-phase zone, convection, heat and mass transfer, zone melting without crucible.







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