The effect of adding different percentages of Copper on corrosion of pure Aluminum

Aluminum and its alloys normally solidify in a columnar structure according to directionally slow cooling rate which results decreasing the mechanical strength. has huge tendency unite with oxygen form oxide film on surface, offers of it excellent resistance corrosion provides years maintenance-free service offered spare lot without maintenance. Because aluminum fact work applications. Study was carried out coppers impact addition pure were six different Al-Cu (1, 2, 3, 4, 5 6) wt% Cu content prepared experimentally tested acidic alkaline medium. As general increase percentages copper led increased total rates samples submerged corrosive From obtained been reached that alloy 6%Cu (0.02585MPY) higher than 1%Cu where (0.00081MPY) two medium, while (0.505414MPY) from (0.433369MPY) alkali attained medium rates.