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Formation of a multigrain structure and its influence on the strength and plasticity of the Ni3Al intermetallic compound

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Abstract

The structure of the Ni3Al intermetallic compound synthesized in a powder mixture of initial elements under pressure with plastic deformation of the sample has been studied. It has been shown that, in the intermetallic compound, the plastic deformation forms a bimodal grain structure consisting of micrometersize grains, multigrains composed of submicrometer-size grains, and intergrain layers containing nanometersize Al2O3, Ni2Al3, and NiAl crystallites. As the degree of deformation increases, the number of multigrains in the grain structure of the intermetallic compound increases, as well as the strength and plasticity of this compound.

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Authors and Affiliations

  1. Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, pr. Akademicheskii 2/4, Tomsk, 634021, Russia

    V. E. Ovcharenko, E. N. Boyangin & K. V. Ivanov

  2. National Research Tomsk Polytechnic University, pr. Lenina 30, Tomsk, 634050, Russia

    V. E. Ovcharenko

  3. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskii pr. 49, Moscow, 119991, Russia

    M. M. Myshlyaev

  4. Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, pr. Akademichrskii 2/3, Tomsk, 634055, Russia

    Yu. F. Ivanov

Authors
  1. V. E. Ovcharenko
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  2. E. N. Boyangin
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  3. M. M. Myshlyaev
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  4. Yu. F. Ivanov
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  5. K. V. Ivanov
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Corresponding author

Correspondence to V. E. Ovcharenko.

Additional information

Original Russian Text © V.E. Ovcharenko, E.N. Boyangin, M.M. Myshlyaev, Yu.F. Ivanov, K.V. Ivanov, 2015, published in Fizika Tverdogo Tela, 2015, Vol. 57, No. 7, pp. 1270–1276.

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Ovcharenko, V.E., Boyangin, E.N., Myshlyaev, M.M. et al. Formation of a multigrain structure and its influence on the strength and plasticity of the Ni3Al intermetallic compound. Phys. Solid State 57, 1293–1299 (2015). https://doi.org/10.1134/S1063783415070252

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  • DOI: https://doi.org/10.1134/S1063783415070252

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