The corrosion of aluminum alloys in a saturated Ca(OH)2 solution containing NaCl has been studied through the measurements of weight loss and anodic polarization curves. The weight loss of aluminum alloy showed the following sequence: Al-Mg-Si>>Al-Zn>Al-Mg≅Al>Al-Mn>Al-Cu. It is concluded that the corrosion of aluminum alloys is controlled by the accumulation of corrosion products and its rate is proportional to the passivation current.
