CORROSION OF MILD STEEL IN SEA SEDIMENT UNDER A THERMAL GRADIENT
When a canister containing conditioned high-level waste is buried in sea sediment, a thermal gradient is formed around the canister due to the release of the heat produced by the radioactive decay. A study has been conducted to evaluate the influence of such a thermal gradient on the corrosion of a low carbon steel. It has been found that a crust composed mainly of calcium carbonate is formed on the surface of the sample. After a period of about 50 days this crust becomes impervious and the corrosion stops. The diffusion coefficient of the iron corrosion product in the sediment is not influenced by the thermal gradient.
Bibliographic Reference: XII INTERNATIONAL SYMPOSIUM ON SCIENTIFIC BASIS FOR NUCLEAR WASTE MANAGEMENT, BERLIN (GERMANY), OCT. 10-13, 1988, AVAILABILITY: CEC-LUXEMBOURG, DG-XIII-C-3, POB 1907, MENTIONING PAPER EN 34173 ORA
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Record Number: 1989126114100 / Last updated on: 1989-06-01
Available languages: en