Abstract
The effect of the addition of copper on the mechanical behavior of a Fe–12%Mn–0.7%C–1.0%Al twinning-induced plasticity steel was investigated by analysis of the mechanical properties obtained in uniaxial tensile tests by means of a physically based constitutive model. The addition of copper was found to retard the kinetics of twin formation and influenced the type of serrations on the stress–strain curve. The copper additions also resulted in a remarkable increase in total elongation without a loss of strength.
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