Microbially influenced corrosion and inhibition of nickel-zinc and nickel-copper coatings by Pseudomonas aeruginosa

San N. O., NAZIR H., Donmez G.

CORROSION SCIENCE, cilt.79, ss.177-183, 2014 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 79
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.corsci.2013.11.004
  • Dergi Adı: CORROSION SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.177-183
  • Anahtar Kelimeler: Alloy, Nickel, EIS, Microbiological corrosion, MICROBIOLOGICALLY INFLUENCED CORROSION, IMPEDANCE SPECTROSCOPY EIS, SULFATE-REDUCING BACTERIA, STAINLESS-STEEL, LOCALIZED CORROSION, ALLOY COATINGS, MILD-STEEL, BIOFILM, RESISTANCE, FILM
  • Ankara Üniversitesi Adresli: Evet

Özet

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.