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Theoretical Modeling of Crevice and Pitting Corrosion Processes in Relation to Corrosion of Radioactive Waste Containers

Published online by Cambridge University Press:  21 February 2011

John C. Walton
John C. Walton*
Affiliation:
Idaho National Engineering Laboratory, P.O. Box 1625, Idaho Falls, Idaho 83415
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Abstract

A mathematical and numerical model for evaluation of crevice and pitting corrosion in radioactive waste containers is presented. The model considers mass transport, mass transfer at the metal/solution interface, and chemical speciation in the corrosion cavity. The model is compared against experimental data obtained in artificial crevices. Excellent agreement is found between modeled and experimental values for the potential. The importance of full consideration of complex ion formation in the aqueous solution is emphasized and illustrated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 176: Symposium U – Scientific Basis for Nuclear Waste Management XIII , 1989 , 509
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

[1] Newman, J., Electrochemical Systems, Prentice Hall, New Jersey, (1973).Google Scholar
[2] Turnbull, A. and Thomas, J. G. N., J. Electrochem. Soc., 129(7), p. 1412, (1982).Google Scholar
[3] Gravano, S. M., and Galvele, J. R., CorrosionScience, 24(6), p. 517, (1984).Google Scholar
[4] Sharland, S. M., CorrosionScience, 28(6), p. 621, (1988).Google Scholar
[5] Lasaga, A. C., and Kirkpatrick, R. J., Kinetics of Geochemical Processes, Mineralogical Society of America, Washington, (1981).Google Scholar
[6] Press, W. H., Flannery, B. P., Teukolsky, S. A., and Vetterling, W. T., Numerical Recipes - The Art of Scientific Computing, Cambridge University Press, New York, (1985).Google Scholar
[7]Valdes-Moldon, A., Ph.D. thesis, The Pennsylvania State University, (1987).Google Scholar
[8] Pickering, H. W., Corrosion Science, 29(2/3), p. 325, (1989).Google Scholar
[9] Walton, J. C., Corrosion Science, (in press).Google Scholar
[10] Runchal, A., Sagar, B., Baca, R. G., and Kline, N. W., PORFLO -A Continuum Model for Fluid Flow, Heat Transfer, andMass Transport in Porous Media: Model Theory, NumericalMethods, and ComputationalTests, Rockwell Hanford Operations, RHO-BW-CR-150-P, (1985).Google Scholar