On the analysis of the mechanisms of the strain-induced dissolution of phases in metals

The relationship between the processes of the nanostructure evolution and the strain-induced dissolution of phases upon severe plastic deformation is studied. The known mechanisms of these phenomena are analyzed, and new ones are proposed. The extended metastable and equilibrium phase diagram used for the analysis of the deformed nanostructured solid solution allows for the relationships of the equilibrium states of the system of bulk phases with the equilibrium and metastable states of the systems of planar, linear, and point defects.