Solidification of three – component systems with non – linear phase diagram

D.V. Alexandrov, G. Yu. Dubovoi, A. P. Malygin, I. G. Nizovtseva, L. V. Toropova

ABSTRACT:

The theoretical research of  the directional solidification process of ternary systems in the presence of extended area of phase change was carried out. The mathematical model of process of a quasistationary crystallization was developed and its analytical solution taking into account the non – linear equation of the line of a liquidus was constructed. It was revealed  that the deviations of the liquidus equation  from the linear relation can lead to essential change of parameters of the solidification process.

KEYWORDS:

 solidification, two – phase zone, non – linear phase diagram