Evolution of particles of secondary phases in alloys of the Cu-Cr-Zr system in the state of a supersaturated solid solution in the process of deformation-heat treatment

Abstract

In this work, the evolution of particles of secondary phases in the process of equal-channel angular pressing and subsequent heat treatment of the Cu-1.0 wt.% Cr-0.7 wt.% Zr-0.2 wt.% Al alloy, preliminarily subjected to quenching from the pre-melting temperature, is studied. It is shown that in the process of deformation of the samples, partial dissolution of small particles of the secondary phases occurs. As a result of the subsequent aging, the Cr and Al atoms that have passed into the solution are again separated into small particles. Additionally, there was a partial separation of Cr atoms from the solid solution into small particles of chromium.