N. I. Kourov, V. G. Pushin, A. V. Korolev, V. A. Kazantsev, E. B. Belozerov, E. B. Marchenkova, “Effect of alloying additions and atomic disordering on the physical properties of magnetic Ni<nobr>$_2$</nobr>MnGa-based shape memory alloys”, Zhurnal Tekhnicheskoi Fiziki, 2012, Volume 82, Issue 2,Pages <nobr>50

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Effect of alloying additions and atomic disordering on the physical properties of magnetic Ni$_2$MnGa-based shape memory alloys

N. I. Kourov, V. G. Pushin, A. V. Korolev, V. A. Kazantsev, E. B. Belozerov, E. B. Marchenkova

Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg

Abstract: The effect of atomic disordering induced by melt quenching or severe plastic deformation via high-pressure torsion on the physical properties (thermal expansion coefficient, electrical resistivity, thermoelectric power, magnetization) of a stoichiometric Ni$_{50}$Mn$_{25}$Ga$_{25}$ alloy and nonstoichiometric Ni$_{50}$Mn$_{28.5}$Ga$_{21.5}$ alloys with 2 at% Cu or Co is studied in the temperature range 2 K $\le T\le$ 900 K and the magnetic field range $H\le$ 7 MA/m.

Received: 26.04.2011