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Characteristic Features of Structure Evolution and Phase Composition of an Ultrafine-Grained Al–Mg–Li–Zr Alloy Produced by Severe Plastic Deformation

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Russian Physics Journal Aims and scope

Using the methods of differential scanning calorimetry, X-ray diffractometry, and transmission and scanning electron microscopy, the phase transformations and structure stability of a zirconium-doped ultrafine-grained alloy of the Al–Mg–Li system are investigated under heating conditions. It is found out that an increase in temperature results in the formation of two types of S-phase precipitates differing in their crystal lattice structure. An important role of the S-phase in ensuring high thermal stability of the ultrafine-grained structure formed by the methods of severe plastic deformation is shown.

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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. 47–51, September, 2013.

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Naydenkin, E.V., Ivanov, K.V. Characteristic Features of Structure Evolution and Phase Composition of an Ultrafine-Grained Al–Mg–Li–Zr Alloy Produced by Severe Plastic Deformation. Russ Phys J 56, 1025–1029 (2014). https://doi.org/10.1007/s11182-014-0135-8

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  • DOI: https://doi.org/10.1007/s11182-014-0135-8

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