Kinetics of growth of new phases during hydrogen-induced transformations in $\mathrm{Sm_2Fe_{17}}$ hard magnetic alloy

There kinetics of growth of new phases during hydrogen-induced direct phase transformation in $\mathrm{Sm_2Fe_{17}}$ alloy was analysed. It is shown that evolution of direct phase transformation decreases with temperature transformation decreasing. Analysis of kinetics of growth of new phases during hydrogeninduced direct phase transformations in $\mathrm{Sm_2Fe_{17}}$ alloy allowed to establishe that the process of new phases growth in analysed temperature interval is controlled by diffusion of big atoms of alloy’s components $\mathrm{(Fe, Sm)}$.