METHOD OF MANUFACTURING FUNCTIONAL MATERIAL WITH REVERSIBLE SHAPE MEMORY FROM TiNi-TiCu INTERMETALLIC SYSTEM QUASI-BINARY ALLOY (EMBODIMENTS) Russian patent published in 2019 - IPC C22F3/00 C22F1/18 

FIELD: metallurgy.

SUBSTANCE: invention relates to devices from material with reversible shape memory, and can be used in micromechanics, medicine, radio engineering, etc. Method of manufacturing functional material with reversible shape memory from quasi-binary alloy of intermetallic system TiNi-TiCu involves obtaining material from alloy of intermetallic system TiNi-TiCu in amorphous state, its deformation with degree of deformation below maximum value of pseudoplastic martensite deformation of alloy, its fixation in deformed state and heating of deformed area by means of laser radiation exposure to temperature above alloy crystallisation temperature. Before deformation of material, it is subjected to isothermal crystallisation to impart preset shape memory, deformation of material is carried out in crystalline martensite state, exposure to deformed material by laser radiation is carried out with intensity and duration, providing heating of surface layer of material to temperature higher than melting temperature of alloy and subsequent amorphisation of the crystalline structure of the surface layer to obtain a layered amorphous-crystalline structure in a deformed region exhibiting a reversible shape memory effect.

EFFECT: providing simplification and improvement of manufacturability of the method of manufacturing functional material with reversible shape memory, as well as reducing the area of manifestation of reversible EPF with preservation of large reversible deformations; reduced size and expanded functionality of micromechanical devices.

8 cl, 8 dwg, 2 ex