METHOD OF PRODUCING NANOCOMPOSITE WITH DOUBLE SHAPE MEMORY EFFECT BASED ON MONOCRYSTALS OF FERROMAGNETIC ALLOY NiFeGaCo Russian patent published in 2016 - IPC C22F1/10 C22C19/03 B82Y30/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, namely to deformation and thermo-mechanical treatment of monocrystals of ferromagnetic alloys Ni-Fe-Ga-Co. Method of producing nano composite with double shape memory effect on basis of ferromagnetic alloy monocrystals Ni₄₉Fe₁₈Ga₂₇Co₆ involves annealing of monocrystal in atmosphere of inert gas with further quenching in water and ageing under load at 673 K in vacuum. Annealing of monocrystal is carried out at 1,373 K for 25 minutes, ageing is carried out under load applied along direction of [ $$\overline{3}12$$ ], for 4 hours. After ageing thermal cycling is carried out by cyclic change of temperature in range of martensitic transformations from 220 K to 420 K under action of constant compression load of 30-80 MPa applied along direction [001].

EFFECT: higher mechanical and functional properties of material.

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