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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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Mateo García, Antonio Manuel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Rapid fatigue evaluation of additive manufactured specimens: Application to stainless steel AISI 316L obtained by laser metal powder bed fusioncitations
- 2024Enhancing the corrosion resistance of 2205 duplex stainless steel in molten carbonate salts by laser-surface texturingcitations
- 2024Amorphous carbon film as a corrosion mitigation strategy for stainless steel in molten carbonate salts for thermal energy storage applicationscitations
- 2024Laser surface transformation hardening for automotive metals: recent progresscitations
- 2024Nanosecond multi-passes laser surface texturing on AISI 301LN TRIP steelcitations
- 2024Mitigating the corrosion of AISI 301LN steel in molten carbonate salts by doping with alumina nanoparticles for thermal energy storage applicationscitations
- 2023Phase transformation and residual stresses after laser surface modification of metastable austenitic stainless steelcitations
- 2023Exploring the effects of laser surface modification on AISI 301LN steel: a micro-mechanical studycitations
- 2023Overview of surface modification strategies for improving the properties of metastable austenitic stainless steelscitations
- 2023Nanosecond pulsed laser surface processing of AISI 301LN steel: effect on surface topography and mechanical propertiescitations
- 2023Effect of lateral laser-cladding process on the corrosion performance of Inconel 625citations
- 2023Effect of laser surface texturing on Schmid factor and plastic deformation mechanisms on AISI 301LN steelcitations
- 2023Laser wobbling surface texturing of AISI 301LN steel for enhancement of the corrosion resistance at high temperaturecitations
- 2023Effect of Lateral Laser-Cladding Process on the Corrosion Performance of Inconel 625
- 2023Investigating the effect of nanosecond laser surface texturing on microstructure and mechanical properties of AISI 301LNcitations
- 2022Production and characterization of oxides formed on grade 300 and 350 maraging steels using two oxygen/steam rich atmospherescitations
- 2021On the M23C6-Carbide in 2205 Duplex Stainless Steel: An Unexpected (M23C6/Austenite)—Eutectoid in the δ-Ferritic Matrixcitations
- 2021Experimental correlation of mechanical properties of the Ti-6Al-4V alloy at different length scalescitations
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article
On the M23C6-Carbide in 2205 Duplex Stainless Steel: An Unexpected (M23C6/Austenite)—Eutectoid in the δ-Ferritic Matrix
Abstract
International audience ; This study is focused on isothermal and anisothermal precipitation of M23C6 carbides from the fully ferritic structure of the (γ + δ) austenitic-ferritic duplex stainless steel X2CrNiMo2253, (2205). During isothermal heat treatments, small particles of K-M23C6 carbide precipitates at the δ/δ grain-boundaries. Their formation precedes γ and σ-phases, by acting as highly potential nucleation sites, confirming the undertaken TEM investigations. Furthermore, anisothermal heat treatment leads to the formation of very fine islands dispersed throughout the fully δ-ferritic matrix. TEM characterization of these islands reveals a particular eutectoid, reminiscent of the well-known (γ-σ)—eutectoid, usually encountered in this kind of steel. TEM and electron microdiffraction techniques were used to determine the crystal structure of the eutectoid constituents: γ-Austenite and K-M23C6 carbides. Based on this characterization, orientation relationships between the two latter phases and the ferritic matrix were derived: cube-on-cube, on one hand, between K-M23C6 and γ-Austenite and Kurdjumov-Sachs, on the other hand, between γ-Austenite and the δ-ferritic matrix. Based on these rational orientation relationships and using group theory (symmetry analysis), the morphology and the only one variant number of K-M23C6 in γ-Austenite have been elucidated and explained. Thermodynamic calculations, based on the commercial software ThermoCalq® (Thermo-Calc Software, Stockholm, Sweden), were carried out to explain the K-M23C6 precipitation and its effect on the other decomposition products of the ferritic matrix, namely γ-Austenite and σ-Sigma phase. For this purpose, the mole fraction evolution of K-M23C6 and σ-phase and the mass percent of all components entering in their composition, have been drawn. A geometrical model, based on the corrugated compact layers instead of lattice planes with the conservation of the site density at the interface plane, has been proposed to explain the transition δ-ferrite ⇒ ...