Analysis of the effect of equal-channel angular pressing on the strength and electrical conductivity of low-alloyed alloys of the Cu-Cr-Zr system

Abstract

The effect of equal-channel angular pressing (ECAP) on the strength and electrical conductivity of low-alloyed Cu-Cr-Zr alloys to identify conditions for the formation of states with high strength and electrical conductivity is considered. The increase in the content of alloying elements does not increase the strength of the alloys in the initial quenched state. After ECAP, their strength is increased by dislocations. It is shown that after ECAP of quenched samples, their specific resistances remain almost unchanged due to the increase in the length of the grain boundaries, the volume fraction of small particles of secondary phases and the segregation of alloying atoms from the matrix.

Mechanical Behavior and Wear Characteristics of a Conform Extruded C18150 (Cu-Cr-Zr Alloy) Rod

“…Hence, by adding element, the properties of the Cu-Cr alloys were enhanced [9][10][11][12][13]. Among many elements, the Zr element is the appropriate alloying element added to the binary alloy of Cu-Cr alloy to improve its softening resistance at elevated temperatures of up to 500 °C, mechanical strength, and electrical properties [14][15][16][17]. Te recrystallization temperatures of Cu-Cr and Cu-Zr-Cr alloys were higher than that of pure copper due to the formation of fne precipitates during recrystallization [18].…”