Abstract
Using conductor materials suitable for operating at elevated temperatures is an increasingly important problem. One of the main conductor materials is copper, and it is possible to increase the strength properties of copper without a marked reduction in ductility by work hardening it with small degrees of deformation, however it is practically impossible to retain these properties at elevated temperatures since pure copper has a low recrystallization temperature which leads to its loss of strength. By increasing the recrystallization temperature for copper it is possible to extend the temperature range for operating conductors in the direction of higher temperatures. Since there is little information about the combined effect of microadditions of zirconium and magnesium on the recrystallization of copper with a varying degree of work hardening, the goal of this study was to determine the effect of microalloying zirconium and magnesium on the temperature range of loss of strength in copper.
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