The phenomenon of reduced plasticity in low-alloyed copper

This paper presents the results of investigations that allow us to determine the influence of the temperature of plastic deformation in the range from 20 °C to 800 °C during static tensile tests on the mechanical properties and structure of low-alloy copper alloys of the type CuCo2 and CuCo2B, completed by measurements of the microhardness and observations of the structure in a light microscope, and also of fractures in a scanning electron microscope. Based on the results of these investigations the temperature range for the occurrence of the reduced plasticity of the alloys CuCo2 and CuCo2B could be determined.