Metadynamic recrystallization in A5083 aluminum alloy with homogenized and as-extruded initial microstructures

The static softening behavior of A5083 aluminum alloy with different initial microstructures was studied using various characterization techniques. To calculate the recrystallized fraction, in compression test, a new method based on offset yield stress and Hall–Petch relationship proposed, which is more accurate than conventional methods applicable even when microstructure complex. And relaxation proposed our previous study applied, indicating that this could be employed materials incomplete recrystallization or complex microstructure. Although as-extruded led to developed metadynamic recrystallization, became heterogeneous, compared homogenized When anvil not unloaded during interpass time, resulting external accelerated recovery but impeded recrystallization. New insights were discussed challenge view First, always required an incubation unless experimental conditions sufficiently favorable for Second, active, only dynamic grains also recovery-enhanced subgrains potential nuclei subsequent