Title: In-situ electrochemical study of Zr1nb alloy corrosion in high temperature Li+ containing water
Authors: KRAUSOVA AnetaMACAK JanSAJDL PetrNOVOTNY RadekRENCIUKOVA VeronikaVRTILKOVA V.
Citation: JOURNAL OF NUCLEAR MATERIALS vol. Volume 467 p. 302 - 310
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2015
JRC N°: JRC99065
ISSN: 0022-3115
URI: http://www.sciencedirect.com/science/article/pii/S0022311515302531
http://publications.jrc.ec.europa.eu/repository/handle/JRC99065
DOI: 10.1016/j.jnucmat.2015.10.005
Type: Articles in periodicals and books
Abstract: Long-term in-situ corrosion tests were performed in order to evaluate the influence of lithium ions on the corrosion of zirconium alloy. Experiments were carried out in a high-pressure high-temperature loop (280 °C, 8 MPa) in a high concentration water solution of LiOH (70 and 200 ppm Li+) and in a simulated WWER primary coolant environment. The kinetic parameters characterising the oxidation process have been explored using in-situ electrochemical impedance spectroscopy and slow potentiodynamic polarization. Also, a suitable equivalent circuit was suggested, which would approximate the impedance characteristics of the corrosion of Zr–1Nb alloy. The Mott–Schottky approach was used to determine the semiconducting character of the passive film.
JRC Directorate:Energy, Transport and Climate

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