Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-20T02:27:56.771Z Has data issue: false hasContentIssue false

Mcc Corrosion Tests at Reference Testing Conditions for A27 Cast steel in Hanford Ground Water

Published online by Cambridge University Press:  28 February 2011

M.D. Merz
Affiliation:
Pacific Northwest Laboratory, P.O. Box 999, Richland, WA 99352
F. Gerber
Affiliation:
Pacific Northwest Laboratory, P.O. Box 999, Richland, WA 99352
R. Wang
Affiliation:
Flow Industries, Inc., 21214 68th Ave. S., Kent, WA 98032
Get access

Abstract

The Materials Characterization Center (MCC) at Pacific Northwest Lab- oratory is performing three kinds of corrosion tests for the Basalt Waste Isolation Project (BWIP) to establish the interlaboratory reproducibility and uncertainty of corrosion rates of container materials for high-level nuclear waste. The three types of corrosion tests were selected to address two distinct conditions that are expected in a repository constructed in basalt. An air/steam test is designed to address corrosion during the operational period and static pressure vessel and flowby tests are designed to address corrosion under conditions that bound the condi ring the post-closure period of the repository.

The results of tests at reference testing conditions, which were defined to facilitate interlaboratory comparison of data, are presented. Data are reported for the BWIP/MCC-105.5 Air/Steam Test, BWIP/MCC-105.1 Static Pressure Vessel, and BWIP/MC-105.4 Flowby Test. In those cases where data are available from a second laboratory, a statistical analysis of interlaboratory results is reported and expected confidence intervals for mean corrosion rates are given. Other statistical treatment of data include analyses of the effects of vessel-to-vessel variations, test capsule variations for the flowby test, and oven-to-oven variations for air/steam tests.

Type
Research Article
Copyright
Copyright © Materials Research Society 1987

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

[1] Jones, T. E., Reference Material Chemistry - Synthetic Groundwater Formulation, RHO-BW-ST 37P, Rockwell Hanford Operations, Richland, Washington, 1982.Google Scholar
[2] Bowen, W. M. and Bennett, C. A., Statistical Methods for Nuclear Material Management, NUREG/CR4604, U.S. Nuclear Regulatory Commission, Washington, D.C., 1986 (also PNL-5849, Pacific Northwest Laboratory, Richland, Washington,), Chapter 5.Google Scholar
[3] Uhlig, H. H., Corrosion and Corrosion Control, 2nd ed., (John Wiley and Sons Inc., New York, 1971), p. 99.Google Scholar
[4] Mitchell, C., in Metals Handbook - Desk Edition, edited by Boyer, H. E. and Gall, T. L., (American Society for Metals, Metals Park, Ohio, 1985), Chapter 4, p. 92.Google Scholar
[5] Anantatmula, R. P., Effects of Grand Ronde Basalt Ground Water Composition and Temperature on the Corrosion of Low-Carbon Steel in the Presence of Basalt-Bentonite Packing, Mat. Res. Soc. Symp. Proc. 44:273 (1985).Google Scholar