Mitigation of microbially influenced corrosion of Cu–Ni (90/10) alloy in a seawater environment

Mitigation of microbially influenced corrosion of Cu–Ni (90/10) alloy in a seawater environment In industries where a heat exchanger is made up of Cu–Ni (90/10) alloy and seawater is used as a coolant, microbially influenced corrosion (MIC) is a serious problem. MIC of Cu–Ni (90/10) alloy in a seawater environment inoculated with sulfate-reducing bacteria was successfully inhibited by using two different inhibitor formulations viz. (1) 1,2,3-benzotriazole (BTAH) + tetrakis(hydroxymethyl)phosphonium sulfate (THPS) and (2) 5-(3-aminophenyl)tetrazole + THPS. Electrochemical impedance and potentiodynamic polarization studies showed an inhibition efficiency greater than 99 % for both formulations. The inhibitor formulation BTAH + THPS is so effective that in its presence, there is total absence of any MIC and microfouling even after 90 days, as evidenced by scanning electron micrographs and microbial count. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Mitigation of microbially influenced corrosion of Cu–Ni (90/10) alloy in a seawater environment

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Publisher
Springer Netherlands
Copyright
Copyright © 2016 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2405-7
Publisher site
See Article on Publisher Site

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