Role of Special Boundaries in Structural and Phase Transformations in Metals and Alloys. 2. Phase Transformations

Abstract

Results of the researches conducted at the Department of Heat Treatment and Metal Physics of the Ural Federal University for more than 20 years on the evolution of special misorientations-boundaries (SMB) in metallic materials during deformation, recrystallization and phase transformations are reviewed. The first part of the review was devoted to the concept of the principal role played by SMB during structural transformations in metals and alloys. In the second part, the role of SMB as “genes” (carriers) of structure and texture heredity is generalized to phase transformations. Ahypothesis on unity of the crystallographic mechanisms of all structural and phase transformations is formulated.