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Comparing specific features of the structural formation of aluminum alloys during severe and intense plastic deformation

  • Proceedings of the Second Moscow Readings on Strength of Materials Devoted to the 80th Anniversary of the Birthday of Academician Yu. A. Ossipyan
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

We compare the deformation behavior and specific features of the structural formation of two aluminum alloys, AMTs and V95, upon megaplastic (MPD) and severe plastic (SPD) deformation. It is established that upon SPD by dynamic channel angular pressing, a submicron crystalline structure is formed with grain sizes of 200 to 600 nm; and that upon MPD by high quasi-hydrostatic pressure shearing, a nanostructure is formed with grain sizes of 55 to 100 nm. The sequence of the phase and structure transition is established for an increase in the rate of deformation and velocity of the materials. Mechanisms of elastic energy relaxation are determined as a function of the extent of dislocation mobility.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620990, Russia

    I. G. Brodova, A. N. Petrova & I. G. Shirinkina

Authors
  1. I. G. Brodova
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  2. A. N. Petrova
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  3. I. G. Shirinkina
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Correspondence to I. G. Brodova.

Additional information

Original Russian Text © I.G. Brodova, A.N. Petrova, I.G. Shirinkina, 2012, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2012, Vol. 76, No. 11, pp. 1378–1383.

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Brodova, I.G., Petrova, A.N. & Shirinkina, I.G. Comparing specific features of the structural formation of aluminum alloys during severe and intense plastic deformation. Bull. Russ. Acad. Sci. Phys. 76, 1233–1237 (2012). https://doi.org/10.3103/S1062873812110056

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