Effect of temperature on corrosion and semiconducting properties of oxide films formed on M5 zirconium alloy
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Corrosion Engineering, Science and Technology
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Resumo
Nuclear fuel cladding for pressurised water reactors is commonly manufactured with zirconium
alloys. The M5 alloy is a relatively new cladding material for in-reactor used with enhanced
performance compared to traditional zircaloys. In this work, the influence of temperature on the
corrosion resistance and semiconducting properties of the passive film formed on the M5 alloy in
a borate buffer solution has been evaluated. The electrochemical behaviour of the zirconium alloy
was assessed by potentiodynamic polarisation tests, electrochemical impedance spectroscopy
and Mott–Schottky plots. The results indicated that the corrosion resistance of the M5 alloy
decreased with temperature due to the formation of a less stable and more defective passive film.
The Mott–Schottky approach used in combination with polarisation tests and impedance
measurements was effective to reveal the protective state of the passive film on the M5 alloy.
Como referenciar
ANTUNES, R.A.; OLIVEIRA, M.C.L. de; SOUZA, J.A.B. de. Effect of temperature on corrosion and semiconducting properties of oxide films formed on M5 zirconium alloy. Corrosion Engineering, Science and Technology, v. 51, n. 2, p. 104-109, 2016. DOI: 10.1179/1743278215Y.0000000036. Disponível em: http://repositorio.ipen.br/handle/123456789/27354. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.