Using single crystals of Fe-based disordered alloys (Fe – 28% Ni – 17% Co – 11.5% Al – 2.5% Х (0.05% B) (at.%) (X = Ti, Nb(B), (Ti + Nb)B), undergoing thermoelastic γ-α′-martensitic transformations (MTs), it is shown that precipitation of particles of the ordered γ'-phase in the course of aging at Т = 973 K for 5 h results in the development of shape memory (SME) and superelasticity (SE) effects. It is experimentally found that variation in chemical composition and size of disperse particles of the γ'-phase allows controlling both mechanical and functional properties – SME and SE.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 11, pp. 61–68, November, 2015.
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Chumlyakov, Y.I., Kireeva, I.V., Kuts, O.A. et al. Thermoelastic Martensitic Transformations in Single Crystals of FeNiCoAlX(B) Alloys. Russ Phys J 58, 1549–1556 (2016). https://doi.org/10.1007/s11182-016-0681-3
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DOI: https://doi.org/10.1007/s11182-016-0681-3