Marine atmospheric corrosion of carbon steels

Authors

  • Manuel Morcillo Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC)
  • Jenifer Alcántara Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC)
  • Iván Díaz Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC)
  • Belén Chico Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC)
  • Joaquín Simancas Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC)
  • Daniel de la Fuente Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC)

DOI:

https://doi.org/10.3989/revmetalm.045

Keywords:

Carbon steels, Corrosion, Marine atmosphere, Mössbauer spectroscopy, SEM/EDS, SEM/μRaman, TEM/ED, XRD

Abstract


Basic research on marine atmospheric corrosion of carbon steels is a relatively young scientific field and there continue to be great gaps in this area of knowledge. The presence of akaganeite in the corrosion products that form on steel when it is exposed to marine atmospheres leads to a notable increase in the corrosion rate. This work addresses the following issues: (a) environmental conditions necessary for akaganeite formation; (b) characterisation of akaganeite in the corrosion products formed; (c) corrosion mechanisms of carbon steel in marine atmospheres; (d) exfoliation of rust layers formed in highly aggressive marine atmospheres; (e) long-term corrosion rate prediction; and (f) behaviour of weathering steels. Field research has been carried out at Cabo Vilano wind farm (Camariñas, Galicia) in a wide range of atmospheric salinities and laboratory work involving the use of conventional atmospheric corrosion techniques and near-surface and bulk sensitive analytical techniques: scanning electron microscopy (SEM)/energy dispersive spectrometry (EDS), X-ray diffraction (XRD), Mössbauer spectroscopy and SEM/μRaman spectroscopy.

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Published

2015-06-30

How to Cite

Morcillo, M., Alcántara, J., Díaz, I., Chico, B., Simancas, J., & de la Fuente, D. (2015). Marine atmospheric corrosion of carbon steels. Revista De Metalurgia, 51(2), e045. https://doi.org/10.3989/revmetalm.045

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