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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Colas, Kimberly
CEA Saclay
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2022Environmental degradation of nuclear materials: the use of advanced characterization techniques to understand physical and chemical phenomena
- 2021Impact of ion and neutron irradiation on the corrosion of the 6061-T6 aluminium alloy ; Influence de l'irradiation par ions et neutrons sur la corrosion de l'alliage d'aluminium 6061-T6citations
- 2021Impact of the microstructure on the swelling of aluminum alloys: characterization and modelling basescitations
- 2021Impact of ion and neutron irradiation on the corrosion of the 6061-T6 aluminium alloycitations
- 2020Effects of temperature and pH on uniform and pitting corrosion of aluminium alloy 6061-T6 and characterisation of the hydroxide layerscitations
- 2020Effects of temperature and pH on uniform and pitting corrosion of aluminium alloy 6061-T6 and characterisation of the hydroxide layers ; Effet de la température et du pH sur la corrosion de l'alliage d'Al 6061-T6 et caractérisation des couches d'oxydescitations
- 2019Correlation between quenching rate, mechanical properties and microstructure in thick sections of Al Mg Si( Cu) alloyscitations
- 2019Effect of hardening on toughness captured by stress-based damage nucleation in 6061 aluminum alloycitations
- 2018Understanding of Corrosion Mechanisms after Irradiation: Effect of Ion Irradiation of the Oxide Layers on the Corrosion Rate of M5citations
- 2018Study of the influence of the initial pH on the aqueous corrosion of an Al-Mg-Si alloy at 70°C
- 2018Effect of ion irradiation of the metal matrix on the oxidation rate of Zircaloy-4citations
- 2018Microstructure Evolution in Ion-Irradiated Oxidized Zircaloy-4 Studied with Synchrotron Radiation Microdiffraction and Transmission Electron Microscopycitations
- 2017Stability of β″ nano-phases in Al-Mg-Si(-Cu) alloy under high dose ion irradiationcitations
- 2016Identification of monoclinic θ-phase dispersoids in a 6061 aluminium alloycitations
- 2015Influence of light ion irradiation of the oxide layer on the oxidation rate of Zircaloy-4citations
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article
Impact of ion and neutron irradiation on the corrosion of the 6061-T6 aluminium alloy
Abstract
In nuclear research reactors, aluminium alloys are corroded and an aluminium hydroxide film covers their surface. Defects created by neutron irradiation can have a detrimental effect on this corrosion. In this study, two ion irradiations are performed on a 6061-T6 aluminium alloy. The first irradiation experiment aims at studying the effect of metal matrix irradiation on aluminium corrosion. The second irradiation experiment aims at studying the effect of hydroxide irradiation on aluminium corrosion. The displacement per atom is at most 2.5 dpa in the hydroxide film irradiated with Al ions of 1.2 and 5 MeV and at most 8 dpa in the aluminium matrix irradiated with Al ions of 1.8 MeV (calculated with SRIM). The effects of ion irradiation are investigated by TEM and SEM observations. The crystalline structure of aluminium hydroxide is studied by electron diffraction, μ-Raman and X-rays diffraction. In the aluminium hydroxide film (composed of a mix of bayerite, α-Al(OH) 3 , and boehmite, γ-AlOOH, before irradiation), ion irradiation causes formation of voids and dehydrates the aluminium hydroxide (nanocrystallites of η-Al 2 O 3 are observed in the irradiated film). In the aluminium matrix, irradiation increases density of dislocations and amorphizes dispersoids. After ion irradiation, samples are corroded at 70 °C in 2.8L of demineralised water. The two irradiations increase aluminium corrosion. The second part of this study is about samples corroded in the Osiris nuclear research reactor, in water at 42 °C, with a pH of 6 and for 18 months. The aluminium hydroxide film observed on these samples has a layered microstructure composed of a compact inner layer, a thick intermediate layer and an outer layer of cuboid microcrystals. Silicon enrichment is observed in the inner layer. The effect of ion and neutron irradiation on aluminium corrosion is compared in this study and similarities are observed between ion and neutron irradiations.