| People | Locations | Statistics |
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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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Gheno, Thomas
Office National d'Études et de Recherches Aérospatiales
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Modeling the Role of the Grain Structure in the Oxidation of Polycrystals
- 2024Effects of Al and refractory alloying elements (W, Ta and Hf) on oxidation kinetics, oxygen dissolution and diffusion in titanium alloyscitations
- 2024Combining experiments and simulations to study high temperature corrosion: data, models, tools
- 2023Kinetics of Alloy Depletion During Selective Oxidation in Polycrystalscitations
- 2023Effect of refractory elements and of aluminium on oxygen diffusion and solubility in Titanium alloys: experiments and first-principles calculations
- 2022Simulation of diffusion with non-equilibrium vacancies, Kirkendall shift and porosity in single-phase alloyscitations
- 2021Alumina Failure and Post-failure Oxidation in the NiCoCrAlY Alloy System at High Temperaturecitations
- 2021Alumina Failure and Post-failure Oxidation in the NiCoCrAlY Alloy System at High Temperaturecitations
- 2020Oxidation Behavior of a Spark Plasma Sintered Ti–48Al–2W–0.1B Alloy at 800 °Ccitations
- 2020On the role of surface deformation in the oxidation of NiCr alloys at 340–600 °C ; Sur le rôle de la déformation de surface dans l'oxydation des alliages NiCr à 340-600 °Ccitations
- 2018Revisiting the role of substrate microstructure and short-circuit diffusion in the oxidation of Ni-Cr alloys
- 2018On the Simulation of Composition Profiles in NiCoCrAl Alloys During Al2O3 Scale Growth in Oxidation and Oxidation-Dissolution Regimescitations
- 2017Kinetics of Al2O3-Scale Growth by Oxidation and Dissolution in Molten Silicate
- 2017Modes of Deposit-Induced Accelerated Attack of MCrAlY Systems at 1100 °Ccitations
- 2016On the Reaction Mechanism of MCrAlY Alloys with Oxide–Sulfate Deposits at 1100 °Ccitations
- 2013Kinetics of breakaway oxidation of Fe–Cr and Fe–Cr–Ni alloys in dry and wet carbon dioxidecitations
- 2012Oxidation and carburisation of model chromia-forming alloys in carbon dioxide
Places of action
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thesis
Combining experiments and simulations to study high temperature corrosion: data, models, tools
Abstract
The aim of my work is to gain a better understanding of the chemical and microstructural changes associated with the high temperature corrosion of metallic materials, and to provide tools capable of anticipating these changes. After a summary of my career, the manuscript illustrates my contributions to this field through a dialogue between experiments and simulations across three topics. The first chapter addresses the corrosion of NiCoCrAlY alloys under deposits containing oxides, silicates and sulfates. We analyze the degradation modes associated with the deposit constituents, and the way in which the reaction of thermally grown alumina to form aluminates and its dissolution in molten silicates affect aluminum consumption. The second chapter focuses on the role of the microstructure of materials in their ability to form a protective oxide scale. Chromium depletion kinetics due to its selective oxidation are studied in the cases of lamellar polycrystals and cold-worked alloys. The third chapter concerns interdiffusion in solid solutions. Our work provides insight into the development of Kirkendall porosity and an evaluation of the sink strength associated with dislocation climb by combining simulations and lattice deformation measurements. A last part presents my short- and medium-term research prospects. These relate to the development of simulation tools in the fields of multicomponent diffusion (diffusion-phase equilibrium, optimization of mobility data) and diffusion in polycrystals (effect of grain morphology, recrystallization). Applications are presented in connection with the development of protective coatings and the study of embrittlement problems involving interactions between corrosion and mechanics.