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Production, structure, texture, and mechanical properties of severely deformed magnesium

  • Strength and Plasticity
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Abstract

Methods of the severe plastic deformation (SPD) of pure magnesium at room temperature, namely, transverse extrusion and hydroextrusion in a self-destroyed shell, have been developed. The maximum true strain of the samples after the hydroextrusion was e ~ 3.2; in the course of transverse extrusion and subsequent cold rolling, a true strain of e ~ 6.0 was achieved. The structure and mechanical properties of the magnesium samples have been studied in different structural states. It has been shown that the SPD led to a decrease in the grain size d to ~2 μm; the relative elongation at fracture δ increased to ~20%. No active twinning has been revealed. The reasons for the high plasticity of magnesium after SPD according to the deformation modes suggested are discussed from the viewpoint of the hierarchy of the observed structural states.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Ekaterinburg, 620990, Russia

    A. Yu. Volkov, O. V. Antonova, B. I. Kamenetskii, I. V. Klyukin & D. A. Komkova

  2. Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, ul. Akademicheskaya 20, Ekaterinburg, 620137, Russia

    B. D. Antonov

Authors
  1. A. Yu. Volkov
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  2. O. V. Antonova
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  3. B. I. Kamenetskii
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  4. I. V. Klyukin
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  5. D. A. Komkova
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  6. B. D. Antonov
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Correspondence to A. Yu. Volkov.

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Original Russian Text © A.Yu. Volkov, O.V. Antonova, B.I. Kamenetskii, I.V. Klyukin, D.A. Komkova, B.D. Antonov, 2016, published in Fizika Metallov i Metallovedenie, 2016, Vol. 117, No. 5, pp. 538–548.

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Volkov, A.Y., Antonova, O.V., Kamenetskii, B.I. et al. Production, structure, texture, and mechanical properties of severely deformed magnesium. Phys. Metals Metallogr. 117, 518–528 (2016). https://doi.org/10.1134/S0031918X16050161

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  • DOI: https://doi.org/10.1134/S0031918X16050161

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