Thermal influence on cast iron corrosion in aqueous salt solutions and composite water

Abstract

The corrosion behavior of cast iron in aqueous salt solutions and in composite water at various thermal conditions has been studied by weight-loss, open-circuit potential and potentiostatic methods. The corrosion rate of cast iron increases and the open-circuit potential shifts towards less noble direction with increase of temperature. Cast iron corrosion is higher in aqueous solution of NaCI and KCI salt than other salts. The cathodic and anodic polarization curves exhibit that the reaction is controlled cathodically.