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Corrosion Behavior of Carbon Steel and Stainless Steel Materials under Salt Deposits in Simulated Dry Repository Environments

Published online by Cambridge University Press:  11 February 2011

Lietai Yang ,
Roberto T. Pabalan ,
Lauren Browning  and
Darrell S. Dunn
Lietai Yang
Affiliation:
Center for Nuclear Waste Regulatory Analyses, San Antonio, TX 78238–5166, U.S.A.
Roberto T. Pabalan
Affiliation:
Center for Nuclear Waste Regulatory Analyses, San Antonio, TX 78238–5166, U.S.A.
Lauren Browning
Affiliation:
Center for Nuclear Waste Regulatory Analyses, San Antonio, TX 78238–5166, U.S.A.
Darrell S. Dunn
Affiliation:
Center for Nuclear Waste Regulatory Analyses, San Antonio, TX 78238–5166, U.S.A.
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Abstract

In-situ coupled multielectrode array sensors were used to measure the non-uniform corrosion of carbon steel and stainless steel materials under KCl salt deposit in simulated dry repository environments. It was found that the initiation of non-uniform corrosion occurs at a relative humidity that is 14% lower than the deliquescence relative humidity of the chloride salt. It was found also that once significant corrosion had occurred, the non-uniform corrosion process for the carbon steel material under the salt deposit continues at relative humidities as low as 27%.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 757: Symposium II – Scientific Basis for Nuclear Waste Management XXVI , 2002 , II4.14
Copyright
Copyright © Materials Research Society 2003

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References

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