Journal
CORROSION SCIENCE
Volume 47, Issue 2, Pages 279-287Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2004.09.006
Keywords
aluminium; EIS; microbiological corrosion; pitting corrosion
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As observed before, Al 2024 was passive in artificial seawater (AS) in the presence of a protective biofilm of Bacillus subtilis WB600. When antibiotics were added to the AS to kill the bacteria in the biofilm, pitting occurred within a few hours as indicated by characteristic changes in the impedance spectra. The corrosion potential E-corr decreased at the same time to values observed in sterile AS. Addition of the antibiotics to sterile AS had no effect on corrosion behavior. (C) 2004 Elsevier Ltd. All rights reserved.
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