The corrosion of weathering steel by SO2 polluted atmospheres at its very early stages |
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| Authors: | J F Marco J Dávalos M Gracia J R Gancedo |
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| Institution: | (1) Instituto de Química Física “Rocasolano”, SCIC, Madrid, Spain |
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| Abstract: | 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. |
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