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Corrosion Product Identification and Relative Rates of Corrosion of Candidate Metals in an Irradiated Air-Steam Environment

Published online by Cambridge University Press:  21 February 2011

Donald T. Reed ,
V. Swayambunathan ,
B. S. Tani  and
Richard A. Van Konynenburg
Donald T. Reed
Affiliation:
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Il 60439
V. Swayambunathan
Affiliation:
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Il 60439
B. S. Tani
Affiliation:
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Il 60439
Richard A. Van Konynenburg
Affiliation:
Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA 94550
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Abstract

Previously reported work by others indicates that dicopper trihydroxide nitrate, Cu2NO3(OH)3, forms on copper and copper alloys subjected to irradiated moist air near room temperature. We have performed experiments over a range of temperature and humidity, and have found that this species is formed at temperatures up to at least 150° C if low to intermediate relative humidities are present. At 150°C and 100% relative humidity, only Cu2O and CuO were observed. The relative general corrosion rates of the copper materials tested in 1-month experiments at dose rates of 0.7 and 2.0 kGy/h were Cu > 70/30 Cu-Ni > Al-bronze. High-nickel alloy 825 showed no observable corrosion.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 176: Symposium U – Scientific Basis for Nuclear Waste Management XIII , 1989 , 517
Copyright
Copyright © Materials Research Society 1990

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References

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