The effect of low temperature annealing on the mechanical behavior of cold rolled dual-phase Twinning-Induced Plasticity steel

► Dual-phase structure with high density of deformation twins in cold-rolled TWIP steel. ► Formation of Widmanstätten austenite inside the ferrite grains through annealing treatment. ► Significant effect of Widmanstätten side plates on room-temperature mechanical properties. ► Drastic drop of yield stress with annealing time due to the extensive recovery.