Urban and marine corrosion: Comparative behaviour between field and laboratory conditions
| Autor: | F. Liesa Mestres, J. I. Iribarren Laco, L. Bilurbina Alter, F. Cadena Villota |
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| Rok vydání: | 2004 |
| Předmět: |
Materials science
Hydrogen Carbon steel Scanning electron microscope Mechanical Engineering Metallurgy Metals and Alloys chemistry.chemical_element Iso standards General Medicine Field tests engineering.material Surfaces Coatings and Films Corrosion Marine corrosion chemistry Mechanics of Materials Materials Chemistry engineering Environmental Chemistry Field conditions |
| Zdroj: | Materials and Corrosion. 55:689-694 |
| ISSN: | 1521-4176 0947-5117 |
| DOI: | 10.1002/maco.200303779 |
| Popis: | A detailed study of the corrosion phenomena of carbon steel has been investigated in this work by means of the comparison of field and laboratory tests. Two areas of the metropolitan area of Barcelona (Spain) were selected to carry out the field tests, whereas two different solutions of sodium chloride and sodium hydrogen sulfite were used to simulate the field conditions by means of cyclic laboratory tests. The corrosion rate has been evaluated from the weight loss of the specimens and the morphology surface has been visualized by optical and scanning electron microscopy. Corrosion products and contaminants have been analyzed by X-ray diffraction and energy-dispersive X-ray spectroscopy, respectively. The penetration results can be adjusted to the Passano equation and the corrosivity degree can be assigned in accordance with ISO standards. A correlation between field and laboratory tests has been found, by comparing the specimens with the same degree of corrosion, showing the validity of the accelerated laboratory tests in order to simulate the field conditions. |
| Databáze: | OpenAIRE |
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