High-strength Al-Zn-Mg-Cu alloy after casting ingot form is often rolled into plates of different thicknesses. To recover original structure after deformation, these aluminum alloy plates must be recrystallized. The recrystallization annealing process depends on the main factors such as annealing temperature and duration. | The study on recrystallization annealing the plate of high-strength Al-Zn-Mg-Cu alloy