PASSIVITY BREAKDOWN OF MILD STEEL IN SEA WATER IN THE PRESENCE OF SULPHATE REDUCING BACTERIA

The electrochemical behaviour of 1020 SAE carbon steel in sea water or 0.5 M sodium chloride solutions was studied in the presence of sulphate reducing bacteria (isolated from ship fuel storage tanks) and different concentrations of sulphides. Potentiostatic polarisation techniques were used to follow the evolution of corrosion and pitting potentials in these media. A change of pitting potential of 1020 SAE steel towards more active values was observed at low sulphide concentrations or in the presence of sulphate reducers, suggesting that the role of the latter in the corrosion process might be indirect. The influence of oxygen level on the metal attack is also analysed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00109312
• Corporate Authors:

  National Association of Corrosion Engineers

  2400 West Loop South
  Houston, TX  United States  77027
• Authors:
  • Salvarezza, R C
  • Videla, H A
• Publication Date: 1980-10

Media Info

• Features: References;
• Pagination: p. 550
• Serial:
  • CORROSION
  • Volume: 36
  • Publisher: NACE International
  • ISSN: 0010-9312

Subject/Index Terms

• TRT Terms: Biodeterioration; Corrosion; Electrochemical processes; Steel
• Old TRIS Terms: Passivity; Steel corrosion
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00329984
• Record Type: Publication
• Source Agency: British Ship Research Association
• Files: TRIS
• Created Date: May 21 1981 12:00AM