In this work, the microstructure evolution of aerostatic2E12aluminum alloy during cold deformation and annealing were studied by means of OM, SEM, TEM, XRD and EBSD. Effects of pre-deformation and quenching medium on residual stress were discussed. Besides, effects of grain sizes and residual stress on the fatigue properties of2E12aluminum alloy have been investigated by means of combining fatigue properties tests with microstructure analyses. Main conclusions were presented as followed:
(1)During cold ...