Abstract

PINO, E. et al. Atmospheric corrosion of mild steel in marine atmospheres. Corros. Prot. Mater. [online]. 2015, vol.34, n.2, pp.35-41. ISSN 2182-6587.

Research has been carried out for 6 months in seven pure marine atmospheres with average chloride deposition rates (salinities) of 41-886 mg Cl^-/m².day. The paper considers the entrainment of marine aerosol inland and the exponential relationship between the atmospheric salinity values and the shore distance. The paper also considers mild steel corrosion rate and the resulting corrosion products and layers, and its dependence of atmospheric salinity of the site. Characterization of corrosion products was performed by SEM and XRD. In addition to lepidocrocite and goethite (major contents), high akaganeite and magnetite (minor contents) were found in the corrosion products, the latter ones found mainly at the steel/rust interface.

Keywords : Mild Steel; Corrosion; Marine Atmospheres; SEM; XRD.

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