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This article is cited in 5 scientific papers (total in 5 papers)
Phase transitions
Evolution of structure and properties of Ni$_{47}$Mn$_{42}$In$_{11}$ alloy after plastic deformation
Yu. V. Kaletinaa, E. D. Greshnovaa, A. Yu. Kaletinab a Institute of Metal Physics, Ural Division of the Russian Academy of Sciences, Ekaterinburg
b Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg
Abstract:
Results of the study of the effect of various types of plastic deformation on microstructural features and change in physical and mechanical properties of the nonstoichiometric Heusler alloy Ni$_{47}$Mn$_{42}$In$_{11}$ are shown. It was demonstrated that the deformation by rolling and upsetting leads to an increase in the microhardness and to an embrittlement of the investigated alloy. Severe plastic deformation by torsion under high pressure of 8 GPa at room temperature was found to strongly refine initially coarse grain and to contribute to the formation of a nanocrystalline structure with grain fragments up to 10 nm. In this case, the fraction of viscous constituent on the fracture and the microhardness increased, while the magnetic susceptibility decreased.
Keywords:
ferromagnetic alloys, phase transformation, high pressure, deformation, martensite, structure, microhardness, fracture.
Received: 01.04.2019 Revised: 01.04.2019 Accepted: 02.06.2019
Citation:
Yu. V. Kaletina, E. D. Greshnova, A. Yu. Kaletin, “Evolution of structure and properties of Ni$_{47}$Mn$_{42}$In$_{11}$ alloy after plastic deformation”, Fizika Tverdogo Tela, 61:11 (2019), 2204–2209; Phys. Solid State, 61:11 (2019), 2183–2188
Linking options:
https://www.mathnet.ru/eng/ftt8638 https://www.mathnet.ru/eng/ftt/v61/i11/p2204
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