Under a state contract No. 02.513.11.3053 with the Federal Agency for Science and Innovations, the Institute of Metal Physics has developed a new method for strengthening of titanium nickelide alloys. Thimethod is based on the amorphization phenomena induced by severe plastic deformation, followed by thermal nanocrystallization.
Superior properties have been provided, such as yield stress of 1.7–2.2 GPa, ultimate strength of 2–2.5 GPa, specifc elongation of 80%, contraction ratio of 70%, reversible deformation of 10%, and reactive stress of 1.6 GPa, with a perfect shape memory effect (SME) in a narrow temperature range. Nanostructuring enables the improved functional capabilities of superelasticity and SME-based devices; miniaturizing of SME-based device components; refnement of available technologies and development of new technologies, which are unfeasible with conventionally used materials; provision of resource and energy-saving processes.

