M. : Metallurgy, 1986. 224 s. The thermodynamic properties of grain boundaries and interphase boundaries in metals, the kinetics of diffusion and migration processes based on the study of bicrystalline samples with known geometric, crystallographic and chemical characteristics of boundaries. are considered. A critical review of existing experimental methods for the study of grain boundaries and interfacial boundaries. The analysis of thermodynamic "models" of the surface layer. Methods of determining the parameters of border diffusion. are discussed The book is intended for scientific and engineering workers specializing in the field of metal science and metal physics . Foreword by . Atomic structure of bolysheugol grain boundaries. Thermodynamics of grain boundaries . Diffusion over grain boundaries. Migration of grain boundaries . Bibliographic list