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Influence of high-energy ball milling on the solid-phase sintering kinetics of ultrafine-grained heavy tungsten alloy

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Abstract

The mechanisms for the sintering of ultrafine-grained 95%W–3.5%Ni–1.5%Fe heavy tungsten alloy powders have been investigated. It has been established that a decrease in the activation energy of grain boundary diffusion and the formation of a nonequilibrium solid solution of nickel and iron in the surface layer of tungsten particles upon high-energy ball milling are responsible for the decrease in optimal sintering temperature.

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Authors and Affiliations

  1. Lobachevsky Nizhny Novgorod State University, pr. Gagarina 23, Nizhny Novgorod, 603950, Russia

    V. N. Chuvil’deev, A. V. Nokhrin, M. S. Boldin, N. V. Sakharov, A. A. Popov, E. A. Lantsev & E. S. Smirnova

  2. Russian Federal Nuclear Center, All-Russia Research Institute of Experimental Physics, Sarov, Nizhny Novgorod obl., 607188, Russia

    G. V. Baranov & V. Yu. Belov

Authors
  1. V. N. Chuvil’deev
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  2. A. V. Nokhrin
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  3. M. S. Boldin
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  4. N. V. Sakharov
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  5. G. V. Baranov
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  6. V. Yu. Belov
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  7. A. A. Popov
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  8. E. A. Lantsev
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  9. E. S. Smirnova
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Corresponding author

Correspondence to A. V. Nokhrin.

Additional information

Original Russian Text © V.N. Chuvil’deev, A.V. Nokhrin, M.S. Boldin, N.V. Sakharov, G.V. Baranov, V.Yu. Belov, A.A. Popov, E.A. Lantsev, E.S. Smirnova, 2017, published in Doklady Akademii Nauk, 2017, Vol. 476, No. 3, pp. 285–289.

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Chuvil’deev, V.N., Nokhrin, A.V., Boldin, M.S. et al. Influence of high-energy ball milling on the solid-phase sintering kinetics of ultrafine-grained heavy tungsten alloy. Dokl. Phys. 62, 420–424 (2017). https://doi.org/10.1134/S1028335817090075

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  • DOI: https://doi.org/10.1134/S1028335817090075

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