The corrosion of weathering steel by SO2 polluted atmospheres at its very early stages
CEMS was used in conjunction with AES to study the protective film formed on a weathering steel by exposure to a highly SO2-polluted atmosphere. Ferrous species (sulphite) and ferric oxyhydroxides (ferrihydrite and α-FeOOH) were identified as corrosion products. From the correlation of CEMS and AES results the evolution with time of the different compounds is obtained, and a possible reaction sequence is outlined.
KeywordsAtmosphere Thin Film Corrosion Product Reaction Sequence Oxyhydroxides
Unable to display preview. Download preview PDF.
- J.F. Marco, J. Dávalos, J.R. Gancedo and M. Gracia, Hyp. Int. 46 (1989) 453.Google Scholar
- J.R. Gancedo y M.L. Martínez, in:Mag. Resonance Coll. and Interface Science (Reidel, Dordrecht, 1980) pp. 371–376.Google Scholar
- J.F. Marco, M. Gracia and J.R. Gancedo, Hyp. Int. 47 (1989) 544.Google Scholar
- W.E. O'Grady, J. Electrochem. Soc. 127 (1980) 555.Google Scholar
- J.F. Marco, J.R. Gancedo, M. Gracia and J. Palacios, unpublished results.Google Scholar
- W. Meisel, J. Physique Colloque C1 41 (1980) 63.Google Scholar