期刊
CORROSION SCIENCE
卷 83, 期 -, 页码 189-197出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2014.02.014
关键词
Carbon steel; SEM; Microbial corrosion; Rust
资金
- CSIRO
- CSIRO OCE Post Doctoral Fellowship scheme
- CSIRO Water for a Healthy Country Flagship
- facilities, scientific and technical assistance of the Australian Microscopy & Microanalysis Research Facility at the Centre for Microscopy
- Characterisation & Analysis, the University of Western Australia
- University, State and Commonwealth Governments
Marine corrosion has significant economic impacts globally. Marine rust on carbon steel in Western Australia was investigated to determine the importance of various microorganisms in corrosion. Microorganisms were imaged, identified and enumerated by pyrosequencing. The base of tubercles was anaerobic. Pyrosequencing demonstrated the presence of diverse bacteria and archaea. However, the dominant group were methanogenic archaea, representing 53.5% of all sequences. One methanogenic species, Methanococcus maripaludis, comprised 31% of sequences, and can significantly increase corrosion rates by extracting electrons directly from steel. Methanogenic archaea may be significant contributors to marine corrosion of carbon steel. (C) 2014 Elsevier Ltd. All rights reserved.
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