Corrosion of Carbon Steel in Marine Environments: Role of the Corrosion Product Layer

Citations Over TimeTop 10% of 2020 papers

Abstract

This article presents a synthesis of recent studies focused on the corrosion product layers forming on carbon steel in natural seawater and the link between the composition of these layers and the corrosion mechanisms. Additional new experimental results are also presented to enlighten some important points. First, the composition and stratification of the layers produced by uniform corrosion are described. A focus is made on the mechanism of formation of the sulfate green rust because this compound is the first solid phase to precipitate from the dissolved species produced by the corrosion of the steel surface. Secondly, localized corrosion processes are discussed. In any case, they involve galvanic couplings between anodic and cathodic zones of the metal surface and are often associated with heterogeneous corrosion product layers. The variations of the composition of these layers with the anodic/cathodic character of the underlying metal surface, and in particular the changes in magnetite content, are thoroughly described and analyzed to enlighten the self-sustaining ability of the process. Finally, corrosion product layers formed on permanently immersed steel surfaces were exposed to air. Their drying and oxidation induced the formation of akaganeite, a common product of marine atmospheric corrosion that was, however, not detected on the steel surface after the permanent immersion period.

Related Papers

• → Complexes of fulvic acid on the surface of hematite, goethite, and akaganeite: FTIR observation(2005)190 cited
• → Comparison study on transformation of iron oxyhydroxides: Based on theoretical and experimental data(2011)20 cited
• → Adsorption behaviour of As(III) onto synthetic iron-based minerals: A comparative study of akaganeite, goethite and magnetite(2021)6 cited
• → Mineralogical-Geochemical Study of Corroded Iron-Based Metals from a Salt Mine Environment(2020)3 cited
• An experimental study of oxygen isotope fractionations in goethite akaganeite water systems at low temperatures(2002)