AbstractThe pitting potential of the following aluminum alloys in 3 sodium chloride solution was measured using potentiodynamic and potentionstatic methods: Al‐2.7 Mg with 0–0.47 Cr, Al‐2.7 Mg with 0–0.94 Mn, Al‐2.7 Mg‐0.43 Mn with 0–0.31 Cr, Al‐4.7 Mg‐0.13 Cr‐0.78 Mn, Al‐51 Mg with 0.1 and 0.3 Sb, Al 2S‐1/2H (commercial aluminum) super pure Al (99,99 Al). The results show that the pitting potential is not much affected by the alloying elements. The pitting potetial decreases with increasing content of magnesium and increases slightly with increasing content of manganese up to a certain point. The nature and amount of secondary phases do not seem to have any marked influence upo
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