PROCEDURE FOR PRODUCTION OF MODIFIED SURFACE LAYER IN NICKELIDE OF TITANIUM OF COARSE-GRADE AND NANO-STRUCTURE STATE Russian patent published in 2011 - IPC C23C14/48 C23C14/18 B82B3/00 

FIELD: metallurgy.

SUBSTANCE: procedure for production of modified surface layer in nickelide of titanium with shape memory effect consists in preliminary heating titanium nickelide and in ion implantation made with ions of nickel, chromium, cobalt and copper obtaining thickness of modified surface layer of 300-500 nm depth. At ion implantation of titanium nickelide with shape memory effect in a coarse-grain state preliminary heating is carried out to temperature within the range 200-350°C. At ion implantation of titanium nickelide with shape memory effect in a nano-structure state preliminary heating is performed to temperature within the range 150-200°C.

EFFECT: improved mechanical characteristics and corrosion resistance of titanium nickelide at maintaining shape memory effect.

3 cl, 1 dwg, 1 tbl, 1 ex