Structure and Properties of Cu/Mg Composites Produced by Hydrostatic Extrusion


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Two Cu/Mg-composite rods of different content of components were produced by hydrostatic extrusion. The volume proportion of the copper sheath and magnesium core was almost equal in one of the two composite samples. Seven thin magnesium fibers were located in the copper matrix of another composite. Estimate calculations of the strength properties and electrical resistance of deformed composites were carried out and compared with the experimental results. The influence of anneals on the microstructure and electrical and mechanical properties of composites was also studied. This work has shown that a temperature rise causes sequential formation of the intermetallic compounds CuMg2 and Cu2Mg at the Cu/Mg interface, which, according to the phase diagram, results in eutectic reactions. The results of this work can be used in the development of high-strength composite conductors.

作者简介

A. Volkov

Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: volkov@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108

A. Kalonov

Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Email: volkov@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108

D. Komkova

Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Email: volkov@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108

A. Glukhov

Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin

Email: volkov@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620108; Ekaterinburg, 620002

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