Stationary kinetic model of a dendrite two-phase zone

Abstract

The theoretical investigation of crystallization processes for metal alloys is associated with the need to describe the phase transformation regularities in the two-phase zone. Either volume nucleation and growth of the solid phase [i], or the dendritic nature of the development of the two-phase zone (the theory of a quasiequilibrium two-phase zone) [2] is assumed in the mathematical models presently in existence. It is assumed in the latter that the two-phase zone is sufficiently finely dispersed and its development is realized in such a way that supercooling of the melt would be zero during the whole crystallization process.