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Effect of hydrostatic pressure on defect structure and durability of ultrafine-grained aluminum

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Abstract

The influence of hydrostatic pressure on the structure and durability of ultrafine-grained aluminum obtained equal-channel angular pressing (ECAP) has been studied. It is established that the experimentally observed initial growth in the durability of ECAP-processed metal is due to the healing of nanopores, whereas a decrease in this growth with increasing number of passes is caused by the related increase in the fraction of large-angle grain boundaries.

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Authors and Affiliations

  1. Ioffe Physical Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    V. I. Betekhtin, A. G. Kadomtsev, V. Sklenička & M. V. Narykova

  2. Institute of Physics of Materials, Academy of Sciences of Czech Republic, 61662, Brno, Czech Republic

    V. I. Betekhtin, A. G. Kadomtsev, V. Sklenička & M. V. Narykova

Authors
  1. V. I. Betekhtin
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  2. A. G. Kadomtsev
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  3. V. Sklenička
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  4. M. V. Narykova
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Correspondence to V. I. Betekhtin.

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Original Russian Text © V.I. Betekhtin, A.G. Kadomtsev, V. Sklenicka, M.V. Narykova, 2011, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2011, Vol. 37, No. 20, pp. 75–79.

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Betekhtin, V.I., Kadomtsev, A.G., Sklenička, V. et al. Effect of hydrostatic pressure on defect structure and durability of ultrafine-grained aluminum. Tech. Phys. Lett. 37, 977–979 (2011). https://doi.org/10.1134/S106378501110018X

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  • DOI: https://doi.org/10.1134/S106378501110018X

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