Microbial induced corrosion in French concept of nuclear waste underground disposal
| Autor: | D. Crusset, D. Féron |
|---|---|
| Přispěvatelé: | Département de Physico-Chimie (DPC), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Agence Nationale pour la Gestion des Déchets Radioactifs (ANDRA) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Hydrogen 020209 energy General Chemical Engineering chemistry.chemical_element 02 engineering and technology [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] Oxygen Cathodic protection Corrosion [CHIM.ANAL]Chemical Sciences/Analytical chemistry 0202 electrical engineering electronic engineering information engineering General Materials Science ComputingMilieux_MISCELLANEOUS [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] Metallurgy Radioactive waste General Chemistry [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Galvanic corrosion chemistry 13. Climate action [SHS.GESTION]Humanities and Social Sciences/Business administration Anaerobic bacteria 0210 nano-technology Anaerobic exercise |
| Zdroj: | Corrosion Engineering, Science and Technology Corrosion Engineering, Science and Technology, Maney Publishing, 2014, 49 (6), pp.540-547. ⟨10.1179/1743278214Y.0000000193⟩ Corrosion Engineering, Science and Technology, 2014, 49 (6), pp.540-547. ⟨10.1179/1743278214Y.0000000193⟩ |
| ISSN: | 1478-422X 1743-2782 |
| DOI: | 10.1179/1743278214Y.0000000193⟩ |
| Popis: | The objective of this paper is to give a short overview of how the bacteria, that may influence the corrosion behaviour of metals and alloys, are taken into account in the French concept of geological repository. It is important to underline that microbial induced corrosion is not a new corrosion phenomena but the presence of bacteria may modify (increase or decrease) anodic or cathodic corrosion reactions. In aerobic conditions, high corrosion rates may be obtained due to the bio-oxidation of pyrites. Under anaerobic conditions (longer period), bacteria may have negative (localised corrosion) or positive (consumption of hydrogen) effects. The mixed conditions (with and without oxygen) may be the most dangerous period for localised corrosion of metals and alloys due to the coupling and galvanic corrosion phenomena enhanced by aerobic and anaerobic bacteria. The first conclusions lead to consider that MIC is a ‘short term’ issue rather than a long term one. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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