Abstract
This work has studied the effect of severe plastic deformation performed by high pressure torsion at 8 GPa and room temperature on the crystallographic structure, microhardness, and magnetic susceptibility of the ferromagnetic Ni47Mn42In11 alloy. The size of structural elements decreases, whereas the fraction of a ductile fracture constituent and the microhardness increase with increasing true strain. Severe plastic deformation performed by high pressure torsion results in phase transformation. No modulated martensite is observed in the structure after deformation.
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ACKNOWLEDGMENTS
This work was performed within the state assignment of FASO of Russia, the cooperative laboratory of the Ural Federal University n.a. the First President of Russia B.N.Yeltsin and the Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences (theme “Structure” no. AAAA-A18-118020190116-6 ) and supported in part by the Russian Foundation for Basic Research (project no. 16-03-00043). We thank N.V. Nikolaeva for the scanning microscopy examination and E.G. Gerasimov for magnetic measurements and his participation in discussions of the experimental results.
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Kaletina, Y.V., Greshnova, E.D., Kaletin, A.Y. et al. Structure and Properties of Ni47Mn42In11 Alloy after Severe Plastic Deformation. Phys. Metals Metallogr. 120, 171–176 (2019). https://doi.org/10.1134/S0031918X19020078
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DOI: https://doi.org/10.1134/S0031918X19020078