In situ evaluation of dynamic precipitation during plastic straining of an Al–Zn–Mg–Cu alloy

The coupling between precipitation and plasticity has been systematically investigated in an Al–Zn–Mg–Cu alloy using in situ small-angle X-ray scattering measurements during thermomechanical tests. Material pre-aged to two different initial precipitate conditions has been examined. Each pre-aged condition has been strained at 160°C and we show that the plasticity induces an accelerated coarsening kinetics, which we characterize in terms of the …