Contact Corrosion of Metals in Aqueous and Aqueous Organic Environments: III. Corrosion of Metals Aqueous Glycol Solutions with High Water Contents

V. N. Esenin and L. I. Denisovich

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991 Russia

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Received November 2, 2006

Abstract — The corrosion behavior of aluminum, steel, and cast iron as either individual metal specimens or as parts of contact aluminum–steel, aluminum–cast iron, steel–cast iron, and aluminum–steel–cast iron systems in aqueous glycol solutions containing 5–50 vol % water is studied. In all systems, aluminum is found to act as a cathode with respect to steel and cast iron and, in contrast to them, is not corroded under the effect of electrolytes. With an increase in the water content in the ethylene glycol solution from 70 to 95%, the corrosion behavior of the metals becomes similar to that in water.

PACS numbers: 82.45.Bb