Origination and propagation of the temperature front on crystallization of Ti$_{50}$Cu$_{50}$ amorphous alloy

A kinetic model and mechanism of the origination and propagation of a temperature front in the Ti$_{50}$Cu$_{50}$ alloy experiencing an amorphous-to-crystalline transition initiated by a volume thermal source are proposed. The physical reasons and conditions for this phenomenon are considered. The model qualitatively and quantitatively agrees with the experimental data for the propagation of the temperature front.