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The changes in phase composition of the subsurface layer of an ultrafine-grained Al–Mg–Li alloy during its deformation under superplasticity conditions

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Russian Physics Journal Aims and scope

The changes in structure and phase composition of an ultrafine-grained aluminum alloy produced by severe plastic deformation are investigated in the course of its tensile deformation under superplasticity conditions. It is demonstrated that under these conditions, the phase transformations due to decomposition of the solid solution are accelerated in the subsurface layer as a result of fast evolution of grain-boundary sliding. Using the grazing beam technique, it is found out that the largest changes in the structural-phase state occur within the ~10 μm subsurface layer.

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Authors and Affiliations

  1. Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia

    E. V. Naydenkin & K. V. Ivanov

Authors
  1. E. V. Naydenkin
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  2. K. V. Ivanov
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Correspondence to E. V. Naydenkin.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 9, pp. 42–46, September, 2013.

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Naydenkin, E.V., Ivanov, K.V. The changes in phase composition of the subsurface layer of an ultrafine-grained Al–Mg–Li alloy during its deformation under superplasticity conditions. Russ Phys J 56, 1018–1024 (2014). https://doi.org/10.1007/s11182-014-0134-9

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  • DOI: https://doi.org/10.1007/s11182-014-0134-9

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