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| The influence of macrofouling on the corrosion behaviour of API 5L X65 carbon steel |  |
| De Brito, L.V.R.; Coutinho, R.; Cavalcanti, E.H.S.; Benchimol, M. (2007). The influence of macrofouling on the corrosion behaviour of API 5L X65 carbon steel Biofouling 23(3): 193-201. dx.doi.org/10.1080/08927010701258966 |
| In: Biofouling. Taylor & Francis: London. ISSN 0892-7014, meer |
| Trefwoorden |
Carbon steel; Corrosie; Marien |
| Abstract |
Seawater is a complex corrosive system, and biofouling is one of the factors that influences corrosion processes. The behaviour of corrosion associated with the development of macrofouling was investigated during the first 6 months of the successional process. Three treatments were compared: the 'Control' treatment (absence of macrofouling); 'Community' treatment, and 'Barnacle' treatment, where other macroorganisms were excluded. In the Community treatment, the dominant organisms were filamentous macroalgae (23.73%), barnacles (17.51%), hydroids (16.96%) and encrusting bryozoans (9.58%). In the Barnacle treatment, the cover varied between 39.38% and 62.50%. The corrosion potential ranged from -665.75 to -517.50 mV(Ag/AgC l(KCl)) and could not be associated with fouling development. The highest corrosion rate in the control suggests that macrofouling provides a protection against mass loss. The highest percentage of localised attacks was found in the Community treatment. This may indicate that not only barnacles, but also other organisms induce localised corrosion. |
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