| 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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Teixeira, Julien
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (36/36 displayed)
- 2024Impact of carbon segregation on transition carbides and cementite precipitation during tempering of low carbon steels: Experiments and modelingcitations
- 2024Kinetics and mechanism of austenite decomposition in carbonitrided low-alloy steel
- 2024In situ HEXRD experimental study and prediction of microstructures and internal stresses during heat treatment of carburized and carbonitrided low-alloyed steelscitations
- 2023Numerical Investigations of Phase Transformations Controlled by Interface Thermodynamic Conditions during Intercritical Annealing of Steelscitations
- 2022Carbide-Free Bainite Transformations Above and Below Martensite Start Temperature Investigated by In-Situ High-Energy X-Ray Diffractioncitations
- 2022Microstructure refinement after nitrogen enrichment and austenite decomposition in a low-alloyed steel studied by EBSD and Laser Confocal Scanning Microscopy
- 2022Time-resolved in-situ dislocation density evolution during martensitic transformation by high-energy-XRD experiments: A study of C content and cooling rate effectscitations
- 2022Martensite and nanobainite transformations in a low alloyed steel studied by in situ high energy synchrotron diffractioncitations
- 2022Experimental study of the heat transfer of single-jet impingement cooling onto a large heated plate near industrial conditionscitations
- 2021Carbide-Free Bainite Transformations Above and Below Martensite Start Temperature Investigated by In-Situ High-Energy X-Ray Diffractioncitations
- 2021Advanced EBSD to study phase transformation induced microstructures in carbon and nitrogen enriched 23MnCrMo steel
- 2021Dislocation densities in a low-carbon steel during martensite transformation determined by in situ high energy X-Ray diffractioncitations
- 2021Refinement of bainitic and martensitic microstructures after nitrogen enrichment of a low alloyed steel
- 2021Effect of carbon and nitrogen enrichment in the austenitic field on the formation of microstructures and residual stresses in carburized and carbonitrided low-alloyed steel parts: experimental study and simulation
- 2021Design of new economic secondary precipitating steels for fatigue resistance at elevated service temperatures (SteelSeco) ; Final Technical. Report Part B
- 2021Influence of nitrogen enrichment on the austenite grain growth and decomposition upon cooling in low-alloy steels by in-situ characterization
- 2021Intercritical annealing of cold-rolled ferrite-pearlite steel: Microstructure evolutions and phase transformation kineticscitations
- 2020Dual-Phase Steels: The First Family of Advanced High Strength Steelscitations
- 2020A Physics-Based Mean-Field Model for Ferrite Recovery and Recrystallizationcitations
- 2019Real-Time Investigation of Recovery, Recrystallization and Austenite Transformation during Annealing of a Cold-Rolled Steel Using High Energy X-ray Diffraction (HEXRD)citations
- 2018Nitrogen-induced nanotwinning of bainitic ferrite in low-alloy steelcitations
- 2018Bainite Formation in Carbon and Nitrogen enriched Low Alloyed Steels: Kinetics and Microstructurescitations
- 2018Numerical investigations of the effects of substitutional elements on the interface conditions during partitioning in quenching and partitioning steelscitations
- 2018Isothermal decomposition of carbon and nitrogen-enriched austenite in 23MnCrMo5 low-alloy steelcitations
- 2017The Effects of Nitrogen on Kinetics and Products of Austenite Decomposition in Low-alloy Steel
- 2017Hierarchical criteria to promote fast and selective a GB precipitation at b grain boundaries in b-metastable Ti-alloyscitations
- 2016Simulation of coupled temperature, microstructure and internal stresses evolutions during quenching of a β -metastable titanium alloycitations
- 2016Carbon and nitrogen effects on microstructure and kinetics associated with bainitic transformation in a low-alloyed steelcitations
- 2015Simulation of coupled temperature, microstructure and internal stresses evolutions during quenching of a beta-metastable titanium alloy
- 2014Investigation of the growth kinetics of gamma -> alpha in Fe-C-X alloys with a thick interface modelcitations
- 2014In situ synchrotron X-ray diffraction and dilatometric study of austenite formation in a multi-component steel: Influence of initial microstructure and heating ratecitations
- 2014In situ synchrotron X-ray diffraction and dilatometric study of austenite formation in a multi-component steel: Influence of initial microstructure and heating ratecitations
- 2007Transformation kinetics and microstructures of Ti17 titanium alloy during continuous coolingcitations
- 2006Modeling of the effect of the beta phase deformation on the alpha phase precipitation in near-beta titanium alloyscitations
- 2005Experimental study and modeling of the microstructure evolutions during the cooling after forging in the titanium alloy Ti17
- 2004Prediction of the kinetics of the phase transformations and the associated microstructure during continuous coolingin the Ti17citations
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article
Martensite and nanobainite transformations in a low alloyed steel studied by in situ high energy synchrotron diffraction
Abstract
Martensitic and nanobainite transformations are studied in situ in a low alloyed, high-Si steel by using in situHEXRD, combined with dilatometry and SEM observations, and by considering the same steel composition andaustenitization conditions. The martensitic microstructure presents a mixed lath-plate morphology with largescatter of sizes whereas the bainite microstructure shows finer laths with more uniform sizes. Recently introducedmethods are used to track in situ by HEXRD, in one single experiment, the phase fractions, the distributionof the carbon and the evolution of the dislocation densities. The study of nanobainite revealed that about twothirds of the carbon partitions from the ferrite to precipitate into transition iron carbides or to enrich theaustenite. Both processes occur very fast after the formation of each nanobainite lath, but the ferrite remainslargely supersaturated in carbon. The dislocation density increases inside each new forming bainitic ferrite lath.It then decreases when recovery becomes preponderant, as described with a recovery model from the literature.After the martensitic transformation, the retained austenite ends up with high hydrostatic compressive stresses.Dislocation densities are higher than in nanobainite and probably more heterogeneous, because recovery is lesssignificant. No carbides were detected, contrary to the nanobainite. The carbon mass balance is analyzed in thelight of these new results and previous investigations on similar systems.