Corrosion behavior of nodular cast iron casks for low and intermediate level wastes
In applying new conditioning methods dehydrated wastes (e.g. concentrates, ion exchange resins) from operation of nuclear power plants and wastes from decommissioning (e.g., highly-activated core components) are conditioned using high integrity nodular cast iron casks without further solidification. Therefore more stringent requirements have to be made for the packaging material. The objective of the investigations was to evaluate the corrosion resistance of the cask material. For this purpose chemical corrosion tests were made applying corrosion media actually considered or postulated in accident scenarios during interim storage or after disposal in the abandoned iron ore mine Konrad or in a salt formation. The conclusion from the corrosion experiments, which have been performed up to now for the basic packaging material, indicates that nodular cast iron casks with wall thicknesses about 200 mm seem to ensure good protection for wastes especially from nuclear power plants with relatively short-lived radionuclides.
- Research Organization:
- Kernforschungszentrum Karlsruhe GmbH, West Germany
- OSTI ID:
- 5474688
- Report Number(s):
- CONF-850995-
- Journal Information:
- Mater. Res. Soc. Symp. Proc.; (United States), Vol. 50; Conference: Materials Research Society international symposium, Stockholm, Sweden, 9 Sep 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
CAST IRON
CORROSION
CONTAINERS
LOW-LEVEL RADIOACTIVE WASTES
INTERMEDIATE-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE DISPOSAL
ALLOYS
CARBIDES
CARBON COMPOUNDS
CHEMICAL REACTIONS
IRON ALLOYS
IRON BASE ALLOYS
IRON CARBIDES
IRON COMPOUNDS
MANAGEMENT
MATERIALS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
TRANSITION ELEMENT COMPOUNDS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage
360105 - Metals & Alloys- Corrosion & Erosion