Abstract
The structure and the mechanical and electrical properties of composites with 7 and 49 magnesium fibers in the copper matrix are studied in this work. It was found that the strength of a deformed composite wire with the maximum volume fraction of Cu/Mg interfaces exceeds the theoretical estimate and the strength of pure copper. It is shown that deformation-induced formation of high-strength solid solutions of magnesium in copper at the interfaces of the composites occurs during the manufacturing process. The low electrical resistivity of the composites is provided by a copper shell.
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ACKNOWLEDGMENTS
The mechanical properties of the samples were studied using the instrument park of the Center for Collective Use of the Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences. The X-ray diffraction analysis was performed on the equipment of the Center for Collective Use “Composition of Substance” of the Institute of High Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences.
Funding
This work was carried out under state assignment on the theme “Pressure” no. AAAA-A18-118020190104-3 and was supported in part by the Ural Branch of the Russian Academy of Sciences (project no. 18-10-2-24).
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Translated by E. Chernokozhin
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Volkov, A.Y., Kalonov, A.A., Zavalishin, V.A. et al. The Influence of Interfaces on the Physicomechanical Properties of Cu/Mg Composites. Phys. Metals Metallogr. 121, 568–574 (2020). https://doi.org/10.1134/S0031918X20060174
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DOI: https://doi.org/10.1134/S0031918X20060174