Alloys with a thermomechanical memory: Structure, properties, and application

A review is presented concerning modern experimental investigations of pret ransition phenomena, thermoelastic martensitic transformations, and physico mechanical properties of titanium alloys with the B2-type structure. Inform ation is given on the atomic structure of the alloys upon transformations, their morphology, conditions and mechanisms of formation, and the effects o f alloying. The main features and the nature of the effects of the thermome chanical shape memory are analyzed. The methods of preparation and treatmen t of the alloys are discussed. The principal directions of the application of shape-memory alloys in engineering and-medicine are considered.