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Evolution of the Structure and Properties of Al/Cu/Mg Ternary Composites during Thermomechanical Treatment

  • STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION
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Abstract

The structure and the mechanical and electrical properties of new ternary composites based on Al‒Mg deformable alloy obtained by fluid extrusion are studied. The evolution of structural and phase transformations in dissimilar fibers (Cu, Mg, and Al–Mg alloy) during thermomechanical treatment are studied using the methods of metallography, scanning electron microscopy, and hardness measurements. It is established that the strengthening of the ternary composite results from solid state reactions at the boundaries of the fiber, which lead to the formation of intermetallide phases (AlCu, Al2Cu, Mg2Cu, and MgCu2) and nonequilibrium supersaturated solid solutions of copper in aluminum and magnesium.

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ACKNOWLEDGMENTS

This work was carried out within a state task from the Federal Agency of Scientific Organizations, subject “Structure”, project no. АААА-А18-118020190116-6.

The electron microscopy studies were performed in the Department of Electron Microscopy of the Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, “Testing Center of Nanotechnologies and Unconventional Materials.”

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Authors and Affiliations

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

    I. G. Brodova, A. Yu. Volkov, I. G. Shirinkina, A. A. Kalonov, T. I. Yablonskikh, V. V. Astaf’ev & L. V. Elokhina

  2. Ural Federal University Named after the First President of Russia B.N. Yeltsin, 620002, Ekaterinburg, Russia

    I. G. Brodova

Authors
  1. I. G. Brodova
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  2. A. Yu. Volkov
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  3. I. G. Shirinkina
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  4. A. A. Kalonov
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  5. T. I. Yablonskikh
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  6. V. V. Astaf’ev
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  7. L. V. Elokhina
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Correspondence to I. G. Brodova.

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Translated by E. Chernokozhin

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Brodova, I.G., Volkov, A.Y., Shirinkina, I.G. et al. Evolution of the Structure and Properties of Al/Cu/Mg Ternary Composites during Thermomechanical Treatment. Phys. Metals Metallogr. 119, 1210–1216 (2018). https://doi.org/10.1134/S0031918X18120050

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  • DOI: https://doi.org/10.1134/S0031918X18120050

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