Intergranular corrosion behavior of the 7075-T6 aluminum alloy under different annealing conditions

▶ The grain structure produced by various annealing conditions has a detrimental effect on the polarization behavior of 7075-T6 aluminum alloy. ▶ The coarse grain structure, the lower breakdown potentials. ▶ The intergranular crack growth is enhanced by coarsening the grain structure.