An overview of microbiologically influenced corrosion of metals and alloys used in the storage of nuclear wastes

Abstract

Microbiologically influenced corrosion has been documented for all metals and alloys currently in use or proposed for packaging nuclear wastes, with the possible exception of titanium. Selection of a material that will provide a reliable physical barrier to prevent leakage of radionuclides for 10³–10⁶ years will depend on a thorough understanding of mechanisms for microbiologically influenced corrosion; the geological, microbiological, and chemical environments of storage sites; and their evolution over time.Key words: nuclear waste storage, microbiologically influenced corrosion, biofilms.