Abstract
The use of alcohols as cathodic inhibitors in HCl solution results in a negative shift of corrosion potential (Ecor). The alcohols concentration of 20 mM, was shown to be the best one. EDX analyses of the alloys showed different intermetallics at the surface of alloys, which made the activity of alcohols in the studied solutions change depending on the surface morphology of the alloys. Experiments indicated that the alcohols adsorption of the alloys in HCl solution obeys Temkin adsorption isotherm rule. The corrosion of the alloys in the solutions was affected by alloying with Cu, Zn, and Mg. For a comparison, pure forms of Al, Cu, Zn, Mg were tested in the solutions.
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