Deformation Interactions in Polycrystalline Alloys

Specificities of the theory of deformation interactions in polycrystalline alloys are discussed in this work. It is shown that, in the continuous approximation, these interactions are completely determined by the dilatation components of elastic and inelastic strain fields created by the systems of grain boundaries and the system of impurity atoms. Formulas and estimates for various types of deformation interactions are presented. Problems concerning the effect of the boundaries on the lattice parameters, the concentration expansion of the lattices of inhomogeneous alloys, and the interaction of grain boundaries are discussed.