Skip to main content

A Probabilistic Model for Degradation of the Engineered Barriers System in the Yucca Mountain Repository

  • Z. Qin (a1) and D.W. Shoesmith (a1)

A probabilistic model to predict the lifetimes of the engineered barrier system proposed for the Yucca Mountain repository is described. The model assumes that the titanium Grade-7 drip shield will fail by hydrogen-induced cracking and the Alloy-22 waste package by a combination of passive and crevice corrosion. The model predicts that crevice corrosion of the waste package can be completely avoided ifthe drip shield deflects seepage drips for between 2000 (realistic behaviour) and 6000 years (conservative behaviour). Sensitivity calculations on the crevice corrosion model suggest that early waste package failure is extremely unlikely providing the drip shield performs its function for a minimum of ~ 300 years.

Hide All
1.Gordon, G. M., Corrosion, 58, 811825 (2002).
2.USDOE OCRWM Report ANL-EBS-MO-000001 REV 00 (2000).
3.Hua, F., Sarver, J., Mohn, W. and Gordon, G., Paper No. 2529, CORROSION 2002, NACE International, Houston, TX (2002).
4.EPRI Report No.1003031 (2002).
5.Hua, F., Mon, K., Pasupathi, P., Gordon, G. and Shoesmith, D. W., Paper No. 4689, CORROSION 2004, NACE International, Houston, TX (2004).
6.Lee, J. H., Bechtel SAIC Report No. ANL-EBS-MD-000003, Rev. 01 (2003).
7.Lee, J. H., Summers, T. and Rebak, R. B., Paper No. 4692, CORROSION 2004, NACE International, Houston, TX (2004).
8.Qin, Z., and Shoesmith, D. W., Proc. of Northern Area Eastern Conf., Ottawa, Canada, NACE International, Houston, TX (2003).
9.Shoesmith, D.W., Noel, J.J., Hardie, D. and Ikeda, B.M., Corrosion Reviews, 18, 331359 (2000)
10.He, X., Noel, J. J. and Shoesmith, D. W., submitted to Electrochimica Acta (2004).
11.Kehler, B. A., Ilevbare, G. O. and Scully, J. C., in Localized Corrosion, NACE Topical Research Symposium, CORROSION 2001, NACE International, Houston, TX (2001).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *


Full text views

Total number of HTML views: 0
Total number of PDF views: 5 *
Loading metrics...

Abstract views

Total abstract views: 50 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 18th August 2018. This data will be updated every 24 hours.