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Impact of Thermal Loading on Waste Package Material Performance

Published online by Cambridge University Press:  15 February 2011

D. Stahl ,
J. K. McCoy  and
R. D. McCright
D. Stahl
Affiliation:
CRWMS Management & Operating Contractor/B&W Fuel Company, 101 Convention Center Drive, Suite P-110, Las Vegas, NV, 89109 and
J. K. McCoy
Affiliation:
CRWMS Management & Operating Contractor/B&W Fuel Company, 101 Convention Center Drive, Suite P-110, Las Vegas, NV, 89109 and
R. D. McCright
Affiliation:
Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA 94551
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Abstract

This report focuses on the prediction of materials performance for the carbon steel corrosion-allowance container as a function of thermal loading for the potential repository at Yucca Mountain. Low, intermediate and high thermal loads were evaluated as to their performance given assumptions regarding the temperature and humidity changes with time and the resultant depth of corrosion penetration. The reference case involved a kinetic relation for corrosion that was utilized in a sensitivity analysis to examine the impacts of time exponent, pitting, and microbiologically-influenced corrosion. As a result of this study, the high thermal load appears to offer the best corrosion performance. However, other factors must be considered in making the final thermal loading decision.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 353: Symposium – Scientific Basis for Nuclear Waste Management XVIII , 1994 , 671
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1. Buscheck, T.A., Nitao, J.J., and Saterlie, S.F., “Evaluation of Thermo-Hydrological Performance in Support of the Thermal Loading System Study,” in High Level Radioactive Waste Management: Proceedings of the Fifth International Conference, (ANS, La Grange Park, IL, and ASCE, New York, 1994), pp. 592–610.Google Scholar
2. Jones, D.A. and Howryla, R.S. “Electrochemical Sensor to Monitor Atmospheric Corrosion in Repository Environments,” presented at the Waste Package Workshop, Las Vegas, Nevada, September 21–23, 1993.Google Scholar
3. Geesey, G., “A Review of the Potential for Microbiologically-Influenced Corrosion of High-Level Nuclear Waste Containers,” CNWRA 93–014, June 1993.Google Scholar