A kinetic model, a physical reason and a condition for stimulated by external
infrasonic mechanical vibrations of the formation of nanocrystals in an amorphous metal film. The nanostructural elements of the amorphous medium are responsible for these processes: locally
ordered nanoclusters and nanoregions containing free volume, which contain two-level systems. When glass is deformed, two-level systems are excited, due to which they
make a significant contribution to inelastic deformation, structural relaxation, formation of nanoclusters
and nanocrystals. The physical mechanism of nanocrystallization of metallic glass during mechanical
exposure includes, in addition to the mechanism of local thermal fluctuations, also athermal
mechanism of quantum tunneling of atoms or atomic groups stimulated by inelastic deformation.