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Galvanic Corrosion Of Carbon Steel Coupled To Copper In Used Nuclear Fuel Containers, Lindsay J. Braithwaite
Galvanic Corrosion Of Carbon Steel Coupled To Copper In Used Nuclear Fuel Containers, Lindsay J. Braithwaite
Electronic Thesis and Dissertation Repository
Deep geological containment of used nuclear fuel will rely on multiple engineered and natural barriers, two of which are the copper-coated used fuel containers and the compacted bentonite clay buffer boxes in which the containers will rest. This work focused on possible galvanic interactions between the copper coating and the steel substrate of the container, which may occur at a hypothetical through-coating defect. In the presence of various amounts of chloride, bentonite, and oxygen, corrosion of the copper/carbon steel couple was studied using electrochemical tests complemented by surface characterization and 3D X-ray imaging. We investigated the effects of copper-to-steel area …