Modelling of Zircaloy-4 accelerated degradation kinetics in nitrogen-oxygen mixtures at 850°C

• Published in: Journal of nuclear materials Vol. 462; pp. 221 - 229
• Main Authors: Lasserre, Marina, Peres, Véronique, Pijolat, Michèle, Coindreau, Olivia, Duriez, Christian, Mardon, Jean-Paul
• Format: Journal Article
• Language: English
• Published: Elsevier 2015
• Subjects: Chemical and Process Engineering; Engineering Sciences; Oxygen-nitrogen mixture; Zircaloy-4; High temperature corrosion; Thermogravimetry

Zirconium-based alloys used in PWR cladding show an acceleration of their oxidation kinetics in air at high temperature compared to their behaviour under oxygen or steam alone. This paper presents an analysis of the oxidation kinetics in order to explain the role of nitrogen during the accelerated c...