Fabre, Stéphanie and Cabet, Céline and Cassayre, Laurent and Chamelot, Pierre
and Delepech, Sylvie and Finne, Jorgen and Massot, Laurent
and Noël, Didier
Use of electrochemical techniques to study the corrosion of metals in model fluoride melts.
(2013)
Journal of Nuclear Materials, 441 (1-3). 583-591. ISSN 0022-3115
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 8MB |
Official URL: http://dx.doi.org/10.1016/j.jnucmat.2013.03.055
Abstract
Molten fluorides are appealing coolants for innovative nuclear systems but structural alloys may undergo corrosion at high temperature. Because corrosion primarily occurs via electrochemical reactions, electrochemical techniques are ideal for the study of corrosion thermochemistry and kinetics. Examples are given. An electrochemical series was established using voltammetry in LiF-NaF at 1173 K. Stability increases in the following order: Na, Cr, Fe, Ni, Mo/W, Ag, Au. Various alloys were also classified according to their oxidation resistance. A cathodic protection method was developed to curb the intergranular attack of some nickel alloys in molten LiF-CaF₂-MgF₂-ZrF₄ containing tellurium vapor at 953 K. Voltammetry and polarization resistance measurement were used to estimate the rate of chromium selective dissolution for nickel base alloys immersed in LiF-NaF at 1073 K and 1173 K.
Item Type: | Article |
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Additional Information: | Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF can be found at Journal of Nuclear Materials website: http://www.sciencedirect.com/science/article/pii/S0022311513005588 |
HAL Id: | hal-00877440 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Other partners > EDF (FRANCE) Other partners > Ecole Nationale Supérieure de Chimie de Paris - ENSCP (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
Laboratory name: | |
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Deposited On: | 28 Oct 2013 14:12 |
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