Journal
CORROSION SCIENCE
Volume 80, Issue -, Pages 416-426Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2013.11.047
Keywords
Mild steel; Weight loss; SEM; Microbiological corrosion
Funding
- National Research Foundation of South Africa
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This paper investigates the impact of additional nitrate sources on mild steel coupon corrosion in a seawater/sediment system. The results show that addition of 5 mM of nitrate sources significantly increased the weight loss of coupons after 20 weeks. SEM results indicate increase in microbial populations and corrosive products in the non-autoclaved and the nitrate-treated environments. EDX analyses revealed an increase in contents of carbon, calcium, magnesium, phosphorus and sodium with the exception of iron with an increase in incubation time. (C) 2013 Elsevier Ltd. All rights reserved.
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