Journal
CORROSION SCIENCE
Volume 79, Issue -, Pages 177-183Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2013.11.004
Keywords
Alloy; Nickel; EIS; Microbiological corrosion
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The present study describes the effect of Pseudomonas aeruginosa on the corrosion rate of nickel-zinc and nickel-copper alloy coatings. The presence of bacteria was associated with decreases in R-ct values, suggesting that P. aeruginosa promoted the corrosion of nickel-copper alloy coatings. However, R-ct values of nickel-zinc coatings increased in response to bacterial inoculation, corresponding to a decrease in corrosion rate for nickel-zinc alloy coatings. Our results suggest that the activity of P. aeruginosa facilitated the corrosion of nickel-copper alloy, while serving a protective function for the nickel-zinc alloy. (C) 2013 Elsevier Ltd. All rights reserved.
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