Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-17T20:15:04.683Z Has data issue: false hasContentIssue false
  • English
  • Français

Corrosion Processes Affecting the Performance of Alloy 22 as a High-Level Radioactive Waste Container Material

Published online by Cambridge University Press:  21 March 2011

G.A. Cragnolino ,
D.S. Dunn ,
Y.-M. Pan  and
O. Pensado
G.A. Cragnolino
Affiliation:
Center for Nuclear Waste Regulatory Analyses (CNWRA), Southwest Research Institute 6220 Culebra Road, San Antonio, TX, 78238-5166, USA Email: [email protected]
D.S. Dunn
Affiliation:
Center for Nuclear Waste Regulatory Analyses (CNWRA), Southwest Research Institute 6220 Culebra Road, San Antonio, TX, 78238-5166, USA Email: [email protected]
Y.-M. Pan
Affiliation:
Center for Nuclear Waste Regulatory Analyses (CNWRA), Southwest Research Institute 6220 Culebra Road, San Antonio, TX, 78238-5166, USA Email: [email protected]
O. Pensado
Affiliation:
Center for Nuclear Waste Regulatory Analyses (CNWRA), Southwest Research Institute 6220 Culebra Road, San Antonio, TX, 78238-5166, USA Email: [email protected]
Get access

Abstract

Alloy 22 is the material preferred by the U.S. Department of Energy for the waste package outer container for geological disposal of high-level radioactive waste at the proposed site in Yucca Mountain, Nevada. Alloy 22 is considered to be extremely resistant to various modes of aqueous corrosion over broad ranges of temperature, pH, and concentration of anionic and oxidizing species. Uniform corrosion under passive dissolution conditions, localized corrosion in the form of crevice corrosion, and stress corrosion cracking are discussed on the basis of experimental results obtained with mill annealed, thermally treated, and welded specimens using electrochemical techniques. The approach developed for long-term performance prediction, including the use of empirically derived parameters for assessing localized corrosion and the modeling of the passive dissolution behavior, is described.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 663: Symposium – Scientific Basis for Nuclear Waste management XXIV , 2000 , 507
Copyright
Copyright © Materials Research Society 2001

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Repository Safety Strategy: Plan to Prepare the Postclosure Safety Case to Support Yucca Mountain Site Recommendation and Licensing Considerations, TDR-WIS-RL-000001. Rev. 03. (CRWMS, M&O Contractor, Las Vegas, NV, 2000).Google Scholar
2. Dunn, D.S, Cragnolino, G.A., and Sridhar, N., Corrosion 56, 90 (2000).Google Scholar
3. Dunn, D.S, Cragnolino, G.A., and Sridhar, N., in Scientific Basis for Nuclear Waste Management XXII, edited by Wronkiewicz, D.J. and Lee, J.H. (Materials Research Society Symposium Proceedings 556, Pittsburgh, PA, 1999), pp. 879–886.Google Scholar
4. Dunn, D.S., Pan, Y.-M., and Cragnolino, G.A., in CORROSION/2000 (Proceedings of the NACE International Annual Conference, Houston, TX, 2000). Paper No. 206Google Scholar
5. Dunn, D.S., Cragnolino, G.A., and Sridhar, N., in Scientific Basis for Nuclear Waste Management XXIII, edited by Smith, R.W. and Shoesmith, D.W. (Materials Research Society Symposium Proceedings, Pittsburgh, PA, in press).Google Scholar
6. Pensado, O., Dunn, D.S., and Cragnolino, G.A.. Modeling of the Passive Film on Nickel-Chromium-Molybdenum Alloys. Presented at the Symposium on Corrosion of Metals and Alloys, MRS 2000 Spring Meeting. San Francisco, CA, 2000 Google Scholar
7. Roy, A.K., Fleming, D.L., Freeman, D.C., and Lum, B.Y., Micron 30, 649 (1999)Google Scholar
8. Pan, Y.-M., Dunn, D.S., and Cragnolino, G.A., in Environmentally Assisted Cracking: Predictive Methods for Risk Assessment and Evaluation of Materials, Equipment, and Structures, edited by Kane, R.S. (American Society for Testing and Materials, ASTM STP 1401, West Conshohocken, PA, 2000), pp. 204–223.Google Scholar
9. Boudin, S., Vignes, J-L., Lorang, G., Belo, M. Da Cunha, Blondiaux, G., Mikhailov, S.M., Jacobs, J.P., and Brongersma, H., Surface and Interface Analysis 22, 462 (1994).Google Scholar
10. Macdonald, D.D., J. Electrochem. Soc. 139, 3434 (1992)Google Scholar
11. Heusler, K.E., in Passivity of Metals, edited by Frankenthal, R.P. and Kruger, J., (The Electrochemical Society, Princeton, NJ, 1978), pp. 771–801.Google Scholar
12. Cavanaugh, M.A., Kargol, J.A., Nickerson, J., and Fiore, N.F., Corrosion 39, 144 (1983)Google Scholar