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Corrosion Behavior of Carbon Steels Under Tuff Repository Environmental Conditions

Published online by Cambridge University Press:  26 February 2011

R. Daniel McCright  and
H. Weiss
R. Daniel McCright
Affiliation:
Lawrence Livermore National Laboratory, P.O.Box 808, L-206, Livermore, CA 94550
H. Weiss
Affiliation:
Lawrence Livermore National Laboratory, P.O.Box 808, L-206, Livermore, CA 94550
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Abstract

Carbon steels may be used for borehole liners in a potential high-level nuclear waste repository in tuff in Nevada. Borehole liners are needed to facilitate emplacement of the waste packages and to facilitate retrieval of the packages, if required. Corrosion rates of low carbon structural steels AISI 1020 and ASTM A-36 were determined in J-13 well water and in saturated steam at 100°C. J-13 well water is representative of water which has percolated through the tuff horizon where the repository would be located. Tests were conducted in air-sparged J-13 water to attain stronger oxidizing conditions. A limited number of irradiation corrosion and stress corrosion tests were performed. Chromium-molybdenum alloy steels and cast irons were also tested. These materials showed lower general corrosion but were susceptible to stress corrosion cracking when welded.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 44: Symposium N – Scientific Basis for Nuclear Waste Management VIII , 1984 , 287
Copyright
Copyright © Materials Research Society 1985

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References

[1] McCright, R. D., Weiss, H., Juhas, M. C., and Logan, R. W., ”Selection of Canister Materials for High-Level Nuclear Waste Containment in a Tuff Repository”, Lawrence Livermore National Laboratory Report UCRL-89988, (November, 1983).Google Scholar
[2] “Conceptual Waste Package Designs for Disposal of Nuclear Waste in Tuff”, Westinghouse Electric Co. Report AESO-TME-3138, (September, 1982).Google Scholar
[3] Hockman, J. N. and W. C. O'Neal, “Thermal Modeling of Nuclear Waste Package Designs for Disposal in Tuff”, Lawrence Livermore National Laboratory Report UCRL-89820 Rev 1, (February, 1984).Google Scholar
[4] Dean, S. W., ”Electrochemical Methods of Corrosion Testing”, Electrochemical Techniques for Corrosion, pp.52–56, Nat'l Ass'n Corrosion Engineers, Houston, TX (1977).Google Scholar