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Título: | AFM study of the early corrosion of a high strength steel in a diluted sodium chloride solution |
Autor: | Sánchez-Montero, Javier CSIC ORCID; Fullea, J. CSIC ORCID; Andrade Perdrix, Carmen CSIC ORCID ; Gaitero, Juan J.; Porro Gutiérrez, Antonio | Palabras clave: | High strength steel AFM Corrosion |
Fecha de publicación: | jul-2008 | Editor: | Elsevier | Citación: | Corrosion Science 50(7): 1820-1824 (2008) | Resumen: | The high strength steels employed as reinforcement in pre-stressed concrete structures are drawn wire steels of eutectoid composition with a pearlitic microstructure. This work is focused on the study, by atomic force microscopy, of the early stages of the corrosion of such steels as a consequence of their exposition to a sodium chloride solution. The obtained images show the pearlitic microstructure of the steel, with a preferential attack of the ferrite phase and the cementite acting as a cathode. The corrosion rate was determined by calculating the amount of material lost from a roughness analysis. The obtained results are in good agreement with the predictions of Galvelel’s theory, according to which the corrosion rate slows down as the pit depth increases. | Versión del editor: | http://dx.doi.org/10.1016/j.corsci.2008.03.013 | URI: | http://hdl.handle.net/10261/19888 | DOI: | 10.1016/j.corsci.2008.03.013 | ISSN: | 0010-938X |
Aparece en las colecciones: | (IETCC) Artículos |
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accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
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