![]() ![]() Highlights: Regularities of the growth of a new phase as macrosystem were combined with micro regularities of the thermodynamic processes occurring in the multicomponent system. ![]() Calculations of the growth rate of the nanocrystals formed in the system have been carried out, the influence of the none-equilibrium factors on the growth rate of nuclei in the system Fe 73,5 Cu 1 Nb 3 Si 13,5 B 9 has been investigated. The growth of crystals during annealing of amorphous ribbons FINEMET has been considered. The method has been used to describe a metastable crystal growth. The growth of spherical nuclei from a multicomponent melt has been considered. The developed approach made it possible, from the general theoretical principles, to obtain simple growth equations for nuclei that are suitable for practical calculations. As the macroscopic parameters of the process, the degree of chemical reactions at the interface, the size and growth rate of the nuclei have been used. A variational approach using the principle of minimum entropy production and the Euler-Lagrange equation has been applied. The interrelation between thermal and diffusion processes in the nuclei and the melt, and the features of mass transfer at the phase boundary were taken into account. The growth processes have been described by the none-equilibrium thermodynamics methods. A new approach to investigate the growth of a new phase nuclei in multicomponent melt has been developed. ![]()
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