Abstract

The electrochemical behavior of AMg-6 aluminum alloy in an aqueous acetate solutions with additions of sodium hydrophosphate, sodium benzoate, and benzotriazol at enhanced (up to 70°C) temperatures is studied. It is found that the time-resistant protective layers are formed upon the introduction of small amounts of sodium hydrophosphate (≤1%) or a mixture of sodium hydrophosphate and benzotriazol (0.5% Na2HPO4 + 0.2% BTA).

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