Abstract
Galvanic corrosion of carbon steel coupled to antimony was studied in aerated and N2-purged electrolytes at ambient and 60°C temperatures. Free corrosion potential of antimony and carbon steel shifts to more active values with increasing temperature and N2 purging of the electrolyte. Under all experimental conditions, antimony remains less electronegative than carbon steels. Aeration and temperature affect potentiodynamic behaviour of both materials. As a consequence, the corrosion current for the antimony–carbon steel couple increases with increasing temperature and with aeration. There was a good agreement between the corrosion currents obtained through the Evans’ experiment and super-imposed potentiodynamic scans.
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