Effect of High Pressure Heat Treatment on Hardness Electrical Conductivity of a Copper-Based Multiple Alloy

Abstract

A copper-based multiple alloy was treated at different high pressure and 850 º C for 15 min, and the effect of high pressure heat treatment on the hardness and electrical conductivity of copper-based multiple alloy were studied by electric conductivity instrument and hardness tester. The results show that high pressure heat treatment can increase the hardness and decrease electrical conductivity of the copper-based multiple alloy. After high pressure heat treatment and 500 º C aging for 2 h, its electrical conductivity can be greatly improved, and the improving is obvious with the pressure increasing.