fig1
From: Role of Mn in partitioning behavior and precipitation evolution in multicomponent Fe-Cu-based steels
Figure 1. (A) Hardness evolution of the Cu-0Mn, Cu-4Mn, CuNiAl and CuNiAl-4Mn steels as a function of aging time at 500 °C; error bars represent standard deviations from ten independent Vickers hardness measurements; (B) Representative engineering stress-strain curves of the steels aged for 20 min at 500 °C; three tensile specimens were tested for each alloy.
