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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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Rouillard, Fabien
CEA Saclay
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (32/32 displayed)
- 2024Improved Oxidation Resistance And Cr Retention Of Coated AISI441 For SOC Application
- 2024Anodic dissolution model with diffusion-migration transport for simulating localized corrosioncitations
- 2023High Temperature performances of coated and non-coated ferritic stainless steel interconnects for Solid Oxide Electrolyzer Cell application
- 2021Microstructural and Chemical Changes of a Ti-Stabilized Austenitic Stainless Steel After Exposure to Liquid Sodium at Temperatures Between 500 °C and 650 °Ccitations
- 2021Determination of residual stress gradient in a Ti-stabilized austenitic stainless steel cladding candidate after carburization in liquid sodium at 500 °C and 600 °Ccitations
- 2021Carburization and Stress Profiles Characterized by High-Energy X-ray Diffraction in 316L Austenitic Stainless Steel After Exposure at 500 °C and 600 °C in Carburizing Liquid Sodiumcitations
- 2021Carburization and Stress Profiles Characterized by High-Energy X-ray Diffraction in 316L Austenitic Stainless Steel After Exposure at 500 °C and 600 °C in Carburizing Liquid Sodiumcitations
- 2020Intermetallic formation of Al-Fe and Al-Ni phases by ultrafast slurry aluminization (flash aluminizing)citations
- 2019Carburization of austenitic and ferritic stainless steels in liquid sodium: Comparison between experimental observations and simulationscitations
- 2019Evaluation of cobalt free coatings as hardfacing material candidates in sodium-cooled fast reactor and effect of oxygen in sodium on the tribological behaviourcitations
- 2019Chemical Interaction of Austenitic and Ferritic Steels with B4C Powder in Liquid Sodium at 600°Ccitations
- 2019Stable isotopes used in the definition of corrosion mechanisms
- 2018Corrosion behaviour of Fe-9Cr steels in O$_2$ and CO$_2$ containing media thick or thin oxide scale ?
- 2018Single event experiment : a powerful approach for studying passivity breakdown pitting corrosion
- 2018An overview of corrosion issues in supercritical fluids
- 2017Carburization of austenitic and ferritic steels in carbon-saturated sodium: preliminary results on the diffusion coefficient of carbon at 873 Kcitations
- 2017Overview on corrosion in supercritical fluidscitations
- 2017Single Crystal and Sintered Alumina Corrosion in Liquid Sodiumcitations
- 2017Study On Cobalt Free Hardfacing Materials For Wear Resistance In Sodium Fast Reactors
- 2017Evaluation of the Compatibility of Aluminide Coatings in High-Temperature Sodium for Fast Reactor Applicationcitations
- 2016On the propagation of open and covered pit in 316L stainless steel.citations
- 2016Etude du mécanisme de carburation d'aciers austénitique et ferritique en milieu sodium/JECH 2016
- 2015Initiation and propagation of a single pit on stainless steel using a local probe techniquecitations
- 2015Analyse d'une piqûre unique se propageant dans un acier inoxydable
- 2015Investigation of a single pit generated with a flow microcell
- 2013Oxidation and crystallographic features of the new prototype structure Ti4NiSi4citations
- 2013Selective Oxidation of Chromium by O-2 Impurities in CO2 During Initial Stages of Oxidationcitations
- 2012A flow microdevice for studying the initiation and propagation of a single pitcitations
- 2011Single pit initiation on 316L austenitic stainless steel using scanning electrochemical microscopycitations
- 2007Mechanisms of oxide layer formation and destruction on a chromia former nickel base alloy in HTR environment
- 2007High temperature corrosion of a nickel base alloy by helium impuritiescitations
- 2007Corrosion behaviour of a high strength nickel base alloy in Gas Cooled Reactors (GCR)
Places of action
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article
Corrosion behaviour of a high strength nickel base alloy in Gas Cooled Reactors (GCR)
Abstract
Ni-Cr-W alloys are claimed to present high creep strength, a good hot workability together with improved oxidation resistance. Recently developed Haynes 230 could be a promising candidate material for the high temperature structures in Gas Cooled Reactors (GCR). However, corrosion resistance of Haynes 230 is unknown in the reactor specific environment namely impure He up to 850-950DC. Generally speaking the impurities in the cooling helium react with most Cr-containing alloys. They can produce surface scale formation, bulk carburisation and-or decarburization, depending on the gas chemistry, the alloy composition and the temperature. The changes in the bulk carbon content and the associated structural transformations can notably degrade the material mechanical properties and must definitely be precluded. Corrosion properties of Haynes 230 were investigated in a purposely-designed facility under different helium media at about 950DC. Short and longer experiments were carried out in simulated GCR coolant in order to assess the corrosion variability to test conditions. More specifically, the oxide scale formation and a deleterious reaction destructing the protective oxide layer were studied. Main factors impacting on this previous reaction, such as the carbon monoxide partial pressure in the gas atmosphere and the activity of the reactive elements in the alloy were investigated. The reaction mechanism is discussed in the light of published models.