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The Effect of Water Vapor on the Corrosion of Carbon Steel at 65°c

Published online by Cambridge University Press:  15 February 2011

Gregory E. Gdowski  and
John C. Estill
Gregory E. Gdowski
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA.
John C. Estill
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA.
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Abstract

AISI 1020 carbon steel was exposed to air at various relative humidities at 65°C. A “critical relative humidity” (CRH) of 75–85% was determined. The CRH is the transitional relative humidity where oxidation/corrosion changes from dry oxidation to aqueous film electrochemical corrosion. Short term testing suggests that aqueous film electrochemical corrosion results in the formation of an inner oxide of Fe3O4, and an outer oxide of a powdery Fe2O3 and/or Fe2O3·xH2O.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 412: Symposium V – Scientific Basis for Nuclear Waste Management XIX , 1995 , 533
Copyright
Copyright © Materials Research Society 1996

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