Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-29T09:13:59.196Z Has data issue: false hasContentIssue false
  • English
  • Français

An Accelerated Electrochemical MIC Test for Stainless Alloys

Published online by Cambridge University Press:  25 February 2011

T.S. Gendron  and
R.D. Cleland
T.S. Gendron
Affiliation:
AECL Research, Chalk River Laboratories, Chalk River, Ontario, Canada, K0J 1J0
R.D. Cleland
Affiliation:
AECL Research, Chalk River Laboratories, Chalk River, Ontario, Canada, K0J 1J0
Get access

Abstract

Previous work in our laboratory and elsewhere has suggested that MIC of stainless steels and nickel-base alloys occurs in locally anaerobic regions that support the growth of sulfate reducing bacteria (SRB). The cathodic reaction is provided by oxygen reduction at remote sites. Such a coupling between anode and cathode is difficult to reproduce in the laboratory, but can be simulated indirectly using a double electrochemical cell, as in previous work. A more realistic simulation using a single aerated electrochemical cell has now been developed, in which a second organism (P. aeruginosa) is used to provide an anoxic habitat for SRB growth and possibly a source of organic carbon, within a layer of silt. A bare alloy electrode is used as the oxygen cathode. Tests of this kind using rigorous microbiological procedures have generated pitting corrosion of several alloys in low chloride media simulating freshwater heat exchanger conditions. Similar test procedures are applicable to other environments of interest to this symposium.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 333: Symposium V – Scientific Basis for Nuclear Waste Management XVII , 1993 , 881
Copyright
Copyright © Materials Research Society 1994

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1 Webster, B.J., Newman, R.C., and Kelly, R.G., “SRB-Induced Localized Corrosion of Stainless Steels”, paper No. 106, Corrosion/91 NACE.Google Scholar
2 Brennenstuhl, A.M., Gendron, T.S., and Cleland, R.D., “Mechanisms of Underdeposit Corrosion in Freshwater Cooled Austenitic Alloy Heat Exchangers”, paper presented at Advances in Corrosion and Protection International Symposium UMIST, Manchester, UK, (1992), in press.Google Scholar
3 Tatnall, R.E., Materials Performance, 20 (8) pp. 41–48, (1981).Google Scholar
4 Doherty, P.E., Shanahan, M.W., in Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors, edited by Theus, G.J. and Weeks, J.R., The Metallurgical Society, (1988) pp. 629–635.Google Scholar
5 Tiller, A.K., “Is Stainless Steel Susceptible to Microbial Corrosion?”, Microbial Corrosion, The Metals Society, London (1983) pp. 104–107.Google Scholar
6 Oudar, J. and Marcus, P., Applied Surface Science 3, p. 48 (1979).Google Scholar
7 Garner, A. and Newman, R.C., “Thiosulphate Pitting of Stainless Steels”, paper No. 186, Corrosion/91 NACE.Google Scholar
8 Roberge, R., Corrosion 44, 274, (1988).CrossRefGoogle Scholar
9 Newman, R.C., Wong, W.P. and Garner, A., Corrosion, 42, 489, (1986).CrossRefGoogle Scholar
10 Postgate, J.R., The Sulphate-Reducing Bacteria. 2nd Ed. Cambridge University Press, 1984.Google Scholar
11 Dexter, S.C., Siebert, O.W., Duquette, D., and Videla, H.A., “Use and Limitations of Electrochemical Techniques for Investigating Microbiological Corrosion”, paper 616, Corrosion/89, NACE.Google Scholar
12 Gendron, T.S., Webster, B.J., and Newman, R.C., “Electrochemistry of Localized Corrosion of Stainless Steels in Environments Containing Sulfate-Reducing Bacteria”, Corrosion Research in Progress Symposium, Corrosion/90 NACE.Google Scholar
13 Gendron, T.S., Cleland, R.D., and Lavoie, P.A., in Microbially Influenced Corrosion and Biodeterioration, edited by Dowling, N.J., Middleman, M.W., and Danko, J.C., Knoxville, TN: The University of Tennessee, p. 2–1.Google Scholar
14 Webster, B.J., Kelly, R.G., and Newman, R.C., ibid., pp. 2–9.Google Scholar
15 Brennenstuhl, A.M., Gendron, T.S., and Doherty, P.E., “Fouling and Corrosion of Freshwater Heat Exchangers” paper presented at the 5th International Symposium on Environmental Degradation of Nuclear Power Systems - Water Reactors,, Monterey, Ca. (1991), in press.Google Scholar
16 Tatnall, R.E., in Biologically Induced Corrosion, edited by Dexter, S.C., NACE-8, (1986), p.246.Google Scholar
17 Benbouzid-Rollet, N.D., Guezennec, J., Conte, M. and Prieur, D., in Microbially Influenced Corrosion and Biodeterioration, edited by Dowling, N.J., et al. . Knoxville, TN: The University of Tennessee, pp. 3–49.Google Scholar
18 Geesey, G.G., “Microbial exopolymers: Ecological and economic considerations”, ASM News, 14; pp. 9–14.Google Scholar
19 Characklis, W.G., Little, B.J., Stoodley, P., and Mc Caughey, M.S., “Microbial Fouling and Corrosion in Nuclear Power Plant Service Water Systems, paper No. 281 Corrosion/91, NACE.Google Scholar
20 Geesey, G.G., “A Review of the Potential for Microbially Influenced Corrosion of High-Level Nuclear Waste Containers”, edited by Cragnolino, G.A., Centre for Nuclear Waste Regulatory Analyses San Antonio, Texas, CNWRA 93–014, 1993.Google Scholar