Production, structure, texture, and mechanical properties of severely deformed magnesium
- Authors: Volkov A.Y.1, Antonova O.V.1, Kamenetskii B.I.1, Klyukin I.V.1, Komkova D.A.1, Antonov B.D.2
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Affiliations:
- Institute of Metal Physics, Ural Branch
- Institute of High-Temperature Electrochemistry, Ural Branch
- Issue: Vol 117, No 5 (2016)
- Pages: 518-528
- Section: Strength and Plasticity
- URL: https://journals.rcsi.science/0031-918X/article/view/166770
- DOI: https://doi.org/10.1134/S0031918X16050161
- ID: 166770
Cite item
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.
About the authors
A. Yu. Volkov
Institute of Metal Physics, Ural Branch
Author for correspondence.
Email: volkov@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990
O. V. Antonova
Institute of Metal Physics, Ural Branch
Email: volkov@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990
B. I. Kamenetskii
Institute of Metal Physics, Ural Branch
Email: volkov@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990
I. V. Klyukin
Institute of Metal Physics, Ural Branch
Email: volkov@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990
D. A. Komkova
Institute of Metal Physics, Ural Branch
Email: volkov@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990
B. D. Antonov
Institute of High-Temperature Electrochemistry, Ural Branch
Email: volkov@imp.uran.ru
Russian Federation, ul. Akademicheskaya 20, Ekaterinburg, 620137