Journal
CORROSION SCIENCE
Volume 83, Issue -, Pages 375-381Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2014.03.003
Keywords
Aluminium; EIS; SEM; Pitting corrosion; Microbiological corrosion
Funding
- National Natural Science Foundation of China [41376003, 41006054]
- Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-EW-205]
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Corrosion of two sacrificial anodes in marine sediment with and without sulphate-reducing bacteria (SRB) was performed. Weight loss experiments indicated that the corrosion rate of Al-Zn-In-Sn was 2-3 times higher than that of Al-Zn-In-Mg-Ti in the SRB-containing sediment. Electrochemical analysis suggested that the corrosion rates of the two anodes were enhanced substantially by SRB. Surface analysis revealed the localised corrosion of the two sacrificial anodes in abiotic and biotic sediments. The concentration of Al3+ in the surface of the samples immersed with SRB was lower than that of the samples without SRB. (C) 2014 Elsevier Ltd. All rights reserved.
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