Abstract
We have reported the results of investigations of the structure and chemical and phase compositions of the amorphous Ni50Ti32Hf18 alloy prepared by rapid quenching from melt by spinning and subjected to heat treatments. The specific features of the fine polycrystalline alloy structure formation depending on the heat-treatment mode have been studied by transmission and scanning electron microscopy, chemical microanalysis, electron diffraction, and X-ray diffraction analysis. According to the data on the temperature behavior of electrical resistivity, critical temperatures of devitrification and subsequent thermoelastic martensitic transformation B2 → B19′ have been determined. The mechanical properties in different heat-treatment modes have been investigated.
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Original Russian Text © N.N. Kuranova, A.V. Pushin, A.N. Uksusnikov, E.S. Belosludtseva, N.I. Kourov, T.E. Kuntsevich, V.G. Pushin, 2017, published in Zhurnal Tekhnicheskoi Fiziki, 2017, Vol. 87, No. 8, pp. 1177–1181.
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Kuranova, N.N., Pushin, A.V., Uksusnikov, A.N. et al. Fine structure and mechanical properties of the shape-memory Ni50Ti32Hf18 alloy rapidly quenched by spinning. Tech. Phys. 62, 1189–1193 (2017). https://doi.org/10.1134/S1063784217080151
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DOI: https://doi.org/10.1134/S1063784217080151