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On the effect of cobalt doping on thermoelastic martensitic transformations in ferromagnetic Heusler Ni50 − x Co x Mn29Ga21 magnetically controlled shape memory alloys

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Abstract

The phase composition, structure, magnetic and thermoelastic martensitic transformations, and physical properties (magnetic susceptibility, magnetization, electric resistivity) in multicomponent magnetic Ni50 − x Co x Mn29Ga21 alloys (with a Co content of x = 0, 1, 2, 3, and 10 at %) exhibiting a magnetically controlled shape memory effect are studied. The critical temperatures of the magnetic transitions and thermoelastic martensitic transformations are determined. It is shown that the studied alloys in the austenitic state are substitutional solid solutions based on a quasi-ternary L21 superstructure (Ni, Co)50Mn29Ga21.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia

    V. G. Pushin, A. V. Korolev, N. I. Kourov, N. N. Kuranova, E. B. Marchenkova & A. G. Popov

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  1. V. G. Pushin
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  2. A. V. Korolev
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  3. N. I. Kourov
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  4. N. N. Kuranova
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  5. E. B. Marchenkova
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  6. A. G. Popov
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Correspondence to V. G. Pushin.

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Original Russian Text © V.G. Pushin, A.V. Korolev, N.I. Kourov, N.N. Kuranova, E.B. Marchenkova, A.G. Popov, 2013, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2013, Vol. 39, No. 16, pp. 55–63.

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Pushin, V.G., Korolev, A.V., Kourov, N.I. et al. On the effect of cobalt doping on thermoelastic martensitic transformations in ferromagnetic Heusler Ni50 − x Co x Mn29Ga21 magnetically controlled shape memory alloys. Tech. Phys. Lett. 39, 737–740 (2013). https://doi.org/10.1134/S1063785013080233

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  • DOI: https://doi.org/10.1134/S1063785013080233

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