In this study, the adiabatic shear and stress-strain behaviors of 7075 aluminum alloy were investigated through split Hopkinson pressure bar. Effects of different aging statuses and strain rate on adiabatic shear susceptibility and flow stress were further discussed. First, a version of split Hopkinson pressure bar was designed, created and calibrated. Cylindrical specimens of 7075 aluminum alloy were heat treated at different aging conditions including solution, under age, peak age and over age. It observed as the aging time increased from solution to peak aged, the flow stress showed 200MPa increasing and in a constant velocity of striker bar in, the amount of strain and strain rate in the specimen reduced significantly. In microstructure investigations of aged specimens, it observed that adiabatic shear band susceptibility and recrystallization in this region increased as aging time increased.
