دورية أكاديمية
Impact 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-T6
| العنوان: | Impact 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-T6 |
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| المؤلفون: | L’haridon-Quaireau, Sarah, Colas, Kimberly, Kapusta, Bénédicte, Verhaeghe, Bénédicte, Loyer-Prost, Marie, Gutierrez, Gaëlle, Gosset, Dominique, Delpech, Sylvie |
| المساهمون: | Laboratoire de Microscopie et d'Etudes de l'Endommagement (LM2E), Service d'Etudes des Matériaux Irradiés (SEMI), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département des Matériaux pour le Nucléaire (DMN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Lab JANNUS, Service de recherches de métallurgie physique (SRMP), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | ISSN: 0022-3115. |
| بيانات النشر: | HAL CCSD Elsevier |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Aluminium hydroxide, corrosion, microstructure, Ion irradiation, Neutron irradiation, [CHIM.MATE]Chemical Sciences/Material chemistry, [PHYS]Physics [physics] |
| الوصف: | International audience ; 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. ; Dans les réacteurs nucléaires de recherche, les ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-03412888; https://hal.science/hal-03412888Test; https://hal.science/hal-03412888/documentTest; https://hal.science/hal-03412888/file/JNUMA-D-20-00259_R1.pdfTest; INSPIRE: 1866291 |
| DOI: | 10.1016/j.jnucmat.2021.153051 |
| الإتاحة: | https://doi.org/10.1016/j.jnucmat.2021.153051Test https://hal.science/hal-03412888Test https://hal.science/hal-03412888/documentTest https://hal.science/hal-03412888/file/JNUMA-D-20-00259_R1.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.285AB059 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.jnucmat.2021.153051 |
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