| 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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Mathieu, Stéphane
Laboratoire de Conception Fabrication Commande
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Oxidation behavior of platinum-containing γ, γ′ and TROPEA superalloy
- 2022Effect of microstructure and intermetallic precipitates on the electrochemical behavior of dissimilar AA6061-T6/ER5183/AA5086-H32 aluminum TIG weld
- 2021Microstructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy
- 2020A comparison of the high-temperature oxidation behaviour of conventional wrought and laser beam melted Inconel 625citations
- 2020A comparison of the high-temperature oxidation behaviour of conventional wrought and laser beam melted Inconel 625citations
- 2018Correlation Between the Pitting Potential Evolution and σ Phase Precipitation Kinetics in the 2205 Duplex Stainless Steelcitations
- 2017Evaluation of the Compatibility of Aluminide Coatings in High-Temperature Sodium for Fast Reactor Applicationcitations
- 2017The Role of Oxygen Partial Pressure on the Nature of the Oxide Scale on a NiCr Model Alloycitations
- 2015The ability of silicide coating to delay the catastrophic oxidation of vanadium under severe conditionscitations
- 2014Experimental study of the liquid-solid phase equilibria of the V-Cr-Si systemcitations
- 2014Experimental isothermal section at 1200 degrees C of V-Cr-Si systemcitations
- 2014Effect of tin addition on Nb-Si-based in situ composites. Part I: Structural modificationscitations
- 2014Effect of tin addition on Nb-Si-based in situ composites. Part II: Oxidation behaviourcitations
- 2014Effect of boron addition on the oxidation resistance of suicide protective coatings: A focus on boron location in as-coated and oxidised coated niobium alloyscitations
- 2014Towards the improvement of the oxidation resistance of Nb-silicides in situ composites: A solid state diffusion approachcitations
- 2013Development of suicide coatings to ensure the protection of Nb and suicide composites against high temperature oxidationcitations
- 2012Influence of Water Vapour on the Rate of Oxidation of a Ni-25wt.%Cr Alloy at High Temperature
- 2012PACK-CEMENTATION OF CHROMIUM ON Co, Ni AND Fe-BASED CARBIDES-STRENGTHENED ALLOYS: INFLUENCE OF THE CARBIDES NATURE ON THE Cr-ENRICHMENT
- 2011Development of Chromium and Aluminum Coatings on Superalloys by Pack-Cementation Techniquecitations
- 2011Protection of cobalt-based refractory alloys by chromium deposition on surface. Part I: Sub-surface enrichment in chromium by packcementationand diffusioncitations
- 2011Protection of cobalt-based refractory alloys by chromium deposition on surface. Part II: Behaviour of the coated alloys in oxidation at high temperaturecitations
- 2011Protection of cobalt-based refractory alloys by chromium deposition on surface. Part I: Sub-surface enrichment in chromium by packcementation and diffusioncitations
- 2007Thixoforming of Steel: New Tools Conception to Analyse Thermal Exchanges and Strain Rate Effectscitations
- 2007Thixoforming of Steel: New Tools Conception to Analyse Thermal Exchanges and Strain Rate Effectscitations
- 2004State of the Sub-surface Microstructure of Carbides strengthened cast Superalloys after High Temperature Oxidation - Use of Thermodynamic Modelling for a better Understanding
- 2003Using thermodynamical modelisation to predict the evolution of Co-base superalloys’ microstructures at high temperature
- 2001Corrosion et protection de l'alliage de magnésium AZ91 élaboré selon différentes voies, et caractérisation électrochimique des différentes phases constitutives
Places of action
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article
Protection of cobalt-based refractory alloys by chromium deposition on surface. Part II: Behaviour of the coated alloys in oxidation at high temperature
Abstract
A high chromium content, typically 30wt.%, is generally considered as necessary for cobalt-based alloys to allow them resisting oxidation by hot gases. Cobalt alloys with a bulk poorer in chromium may become resistant against high temperature oxidation if they are enriched in chromium on surface. The aim of this second part of the work is to expose to air at 1200°C three low-chromium cobalt-based alloys (Co-10Cr, Co-10Cr-0.25C-4.4Ta and Co-10Cr-0.5C-8.7Ta in wt.%), previously enriched in chromium on surface by pack-cementation, in order to examine if the applied cementation treatments are enough to ensure a good behavior on long time. The initial surface enrichment in chromium of the Ta-containing alloys, characterized by a maximal content on surface of about 30wt.%Cr and a depth of enrichment of several hundreds of micrometers, gives them a good resistance to oxidation at 1200°C, despite the very low chromium content in the bulk. This is also due to the interdendritic TaC carbides which may facilitate outward diffusion of chromium during oxidation as they facilitated its inward diffusion during cementation. In contrast, the CoCr alloy, enriched in chromium in the same conditions did not display a so good oxidation behavior.