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Test Methods to Predict Long-Term Corrosion of Container Materials in Repositories

Published online by Cambridge University Press:  26 February 2011

Martin D. Merz  and
Rong Wang
Martin D. Merz
Affiliation:
Pacific Northwest Laboratory, P.O. Box 999, Richland, WA 99352, USA
Rong Wang
Affiliation:
Pacific Northwest Laboratory, P.O. Box 999, Richland, WA 99352, USA
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Abstract

MCC test methods in support of basalt, salt and tuff repositories are described. The methods consist of three general corrosion tests for basalt, two general corrosion tests and three stress corrosion tests for salt, and two general corrosion tests for tuff. The tests encompass the various conditions that are expected in the different repositories. A summary is provided of experimental activities of the MCC, and detailed results of MCC 105.1 Test Method for Long Term General Corrosion in a Basalt Repository (Static System) for standardized, benchmark conditions are presented. A summary of the statistical treatment of data is provided with examples of confidence intervals and the dependence on number of test vessels. The total relative standard deviation for the mean corrosion penetration rate was 11.4% for a mean corrosion penetration rate of 0.0244 mm/yr for 120 d tests at 100°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 44: Symposium N – Scientific Basis for Nuclear Waste Management VIII , 1984 , 767
Copyright
Copyright © Materials Research Society 1985

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References

1. Pitman, S. G.. 1984. Enviromechanical Testing of Titanium Grade 2 and Titanium Grade 12 in Basalt Groundwater, in Industrial Application of Titanium and Zironium (Third Conference), ASTM STP 830, Webster, R. T. and Young, C. F., Editors, American Soc. for Testing and Materials, pp. 5–18.CrossRefGoogle Scholar
2. Anantatmula, R. P., Delegard, C. H., and Fish, R. L.. 1984. Corrosion Behavior of Low-Carbon Steels in Grande Ronde Basalt Groundwater in the Presence of Basalt-Bentonite Packing, Materials Res. Soc. Symposium Proc. Vol 26, p 113.Google Scholar