This book presents the results of research on the regularities during thermocyclic impact on changes in structural-phase states of functional alloys with low-stability **** or instability in the area of structural-phase transformations. Without clarification of the physical regularities of the influence of thermomechanical impact on the properties of alloys, it is impossible to develop technological processes of processing functional materials; therefore, the book widely uses the results of many years of research by the authors of the book. It is known that critical temperatures and stresses for martensitic transformation, for example, B 2 B 19, in NiTi are very sensitive to cycling. The study of structural-phase states, corresponding to changes in physical-mechanical properties of intermetallics in the area of transformations, is a necessary aspect of understanding the nature of the influence of thermomechanical cycling on the properties of functional alloys. This book is dedicated to the fundamental physical aspects of stability, the influence of structural defects on properties and structural-phase transformations of FCC alloys. This book is useful for a wide range of specialistsscientific researchers and engineers, working in the field of materials science and physics of condensed systems, as well as teachers, postgraduates and students, specializing in the field of materials science.

Raises a new concept for creating materials Designs materials with controlled properties Focuses on pre-transition states of matter

Autorentext

Alexander I. Potekaev is a professor, doctor of Physico-Mathematical Sciences, specialist in physics (materials science, structural and phase states of systems, pre-transition phenomena, stability problems, etc.) and founder of the school of low-stability states of physical systems. Anatoly A. Klopotov is a professor, doctor of Physical and Mathematical Sciences and well-known experimental specialist in the field of physics (materials science, structural and phase states of systems, pre-transition phenomena, stability problems, low-stability states of physical systems). Valentina V. Kulagina is an associate professor, candidate of Physical and Mathematical Sciences and well-known specialist in the field of physics of low-stability states of physical systems (materials science, structural and phase states of systems, pre-transition phenomena, stability problems). Yulia V. Solov'eva is an associate professor, doctor of Physico-Mathematical Sciences and experimental specialist in the field of physics of plasticity and strength (materials science, structural and phase states of systems, patterns of deformation and hardening). Sergey G. Anikeev is an associate professor, candidate of Physical and Mathematical Sciences and an experimental specialist in the field of physics of pre-transition phenomena, materials science, structural and phase states of metal systems (primarily titanium nickelide).

Inhalt

1. CRYSTALLOGEOMETRIC AND CRYSTALLO-CHEMICAL CHARACTERISTICS OF METALLIC COMPOUNDS. SIZE EFFECTS IN METALLIC SYSTEMS.- 2. Pre-transitional weakly stable states and views on the influence of point and planar defects and their complexes on structural-phase transformations in condensed systems.- 3. Pre-transitional Weakly Stable States in TiNi-based Alloys.- 4. Influence of Structural Defects, Weakly Stable Pre-transitional States and Phase-Structural Transformations on Alloy Stability.- 5. Crystallogeometry of structures in Ti-Ni-Me systems.