Effect of Equal-Channel Angular Pressing on the Structure, Mechanical Characteristics, and Aging Behavior of Cu–7% Cr and Cu–10% Fe Alloys

The effect of equal-channel angular pressing (ECAP) and subsequent aging on the structure and mechanical properties of Cu–7% Cr and Cu–10% Fe alloys is studied. ECAP is shown to substantially refine the structure of both alloys. The average grain and subgrain sizes of the Cu–7% Cr and Cu–10% Fe alloys subjected to ECAP are 250 ± 13 and 155 ± 7 nm, respectively. Moreover, the presence of shear bands ~100 nm wide is found for the alloys. The...