Abstract
The reversible thermoelastic γ-α′ martensitic transformations under load in new single-crystal ferromagnetic Fe-28%Ni-17%Co-11.5%Al-2.5%Ti (at %) alloy have been studied. It is shown for the first time that precipitation of dispersed particles of the γ′ phase during aging for 7 h at 973 K induces the shape-memory effect and superelasticity in [001] single crystals of Fe-Ni-Co-Al-Ti alloy upon tensile strain. Superelasticity ɛSE = 4.5–6% manifests itself in the temperature range T = 183–333 K.
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Original Russian Text © Yu.I. Chumlyakov, I.V. Kireeva, V.V. Poklonov, Z.V. Pobedennaya, I. Karaman, 2014, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2014, Vol. 40, No. 17, pp. 47–53.
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Chumlyakov, Y.I., Kireeva, I.V., Poklonov, V.V. et al. The shape-memory effect and superelasticity in single-crystal ferromagnetic alloy FeNiCoAlTi. Tech. Phys. Lett. 40, 747–750 (2014). https://doi.org/10.1134/S1063785014090053
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DOI: https://doi.org/10.1134/S1063785014090053