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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
Evaluation of cobalt free coatings as hardfacing material candidates in sodium-cooled fast reactor and effect of oxygen in sodium on the tribological behaviour
Abstract
The feedback produced by operating Sodium-cooled Fast Reactors (SFRs) has shown the importance of material tribological properties. Where galling or adhesive wear cannot be allowed, hardfacing alloys, known to be galling-resistant coatings, are usually applied on rubbing surfaces. The most used coating is the cobalt-base alloy named Stellite 6® because of its outstanding friction and wear behaviour. Nevertheless, cobalt is an element which activates in the reactor leading to complex management of safety during reactor maintenance and mainly decommissioning. As a consequence, a collaborative work between CEA, EDF and FRAMATOME has been launched for selecting promising cobalt-free hardfacing alloys for the 600 MWe Sodium-cooled Fast breeder reactor project named ASTRID. Several nickel-base alloys have been selected from literature review then deposited by Plasma Transferred Arc or Laser Cladding on 17Cr austenitic stainless steel 316L(N) according to RCC-MRx Code (AFCEN Code). Among the numerous properties required for qualifying their use as hardfacing alloys in SFR, good corrosion behaviour and good friction and wear behaviour in sodium are essential. First results on these properties are shown in this article. Firstly, the corrosion behaviour of all coatings was evaluated through exposure tests in purified sodium for 5000 h at 400 °C. All coatings showed an acceptable corrosion behaviour in sodium. Finally, the friction and wear properties of one alloy candidate, NiCrBSi alloy, were studied in sodium in a dedicated designed facility. The influence of the oxygen concentration in sodium on the friction and wear properties was evaluated.