F. Danoix
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View article: Spheroidized plessite in Vaca Muerta: Formation mechanism and its implications for mesosiderites genesis and cooling history
Spheroidized plessite in Vaca Muerta: Formation mechanism and its implications for mesosiderites genesis and cooling history Open
The presence of spheroidized plessite (SP) in mesosiderites was recently reported in the literature. This finding coupled with the poor understanding of this plessite variant, motivated us to investigate its formation process and evaluate …
View article: Effects of Carbon and Nitrogen Concentrations on Precipitation Sequence during Tempering of Martensitic Steels Investigated by Advanced Experimental Methods and Modeling
Effects of Carbon and Nitrogen Concentrations on Precipitation Sequence during Tempering of Martensitic Steels Investigated by Advanced Experimental Methods and Modeling Open
Advanced characterization techniques and modeling are used to get new insight on the microstructural evolutions occurring during the tempering of low-alloyed steels with initial martensitic microstructure. Tempering temperatures from 150°C…
View article: Olivine of Carbonaceous Chondrites and Reservoir of Nebular Hydrogen
Olivine of Carbonaceous Chondrites and Reservoir of Nebular Hydrogen Open
International audience
View article: MICROSCALE TO NANOSCALE ANALYSIS OF NI-RICH IRON METEORITES
MICROSCALE TO NANOSCALE ANALYSIS OF NI-RICH IRON METEORITES Open
International audience
View article: Precision Thermal Treatments, Atom Probe Characterization, and Modeling to Describe the Fe-Cr Metastable Miscibility Gap
Precision Thermal Treatments, Atom Probe Characterization, and Modeling to Describe the Fe-Cr Metastable Miscibility Gap Open
The Fe-Cr metastable miscibility gap has been studied by high-precision thermal treatments, Vickers micro-hardness (HV) measurements, and atom probe tomography (APT). Thermodynamic modeling further supplements the experimental work. The re…
View article: Design and Development of Complex Phase Steels with Improved Combination of Strength and Stretch-Flangeability
Design and Development of Complex Phase Steels with Improved Combination of Strength and Stretch-Flangeability Open
This study presents the design and development of a hot-rolled bainitic steel, presenting a good combination of strength and stretch-flangeability, for automotive applications. Ti, Nb, and Mo were added in the steel composition in order to…
View article: Reflections on the Analysis of Interfaces and Grain Boundaries by Atom Probe Tomography
Reflections on the Analysis of Interfaces and Grain Boundaries by Atom Probe Tomography Open
Interfaces play critical roles in materials and are usually both structurally and compositionally complex microstructural features. The precise characterization of their nature in three-dimensions at the atomic scale is one of the grand ch…
View article: Microstructure Evolution and Competitive Reactions during Quenching and Partitioning of a Model Fe–C–Mn–Si Alloy
Microstructure Evolution and Competitive Reactions during Quenching and Partitioning of a Model Fe–C–Mn–Si Alloy Open
The mechanisms behind the carbon enrichment of austenite during quenching and partitioning are still a matter of debate. This work investigates the microstructural evolution during the quenching and partitioning of a model Fe–C–Mn–Si alloy…
View article: Contribution of Local Analysis Techniques for the Characterization of Iron and Alloying Elements in Nitrides: Consequences on the Precipitation Process in Fe–Si and Fe–Cr Nitrided Alloys
Contribution of Local Analysis Techniques for the Characterization of Iron and Alloying Elements in Nitrides: Consequences on the Precipitation Process in Fe–Si and Fe–Cr Nitrided Alloys Open
Atom Probe Tomography (APT), Transmission Electron Microscopy (TEM), and 3D mechanical calculations in complex geometry and anisotropic strain fields were employed to study the role of minor elements in the precipitation process of silicon…
View article: In Situ Investigation of the Iron Carbide Precipitation Process in a Fe-C-Mn-Si Q&P Steel
In Situ Investigation of the Iron Carbide Precipitation Process in a Fe-C-Mn-Si Q&P Steel Open
Quenching and Partitioning (Q&P) steels are promising candidates for automotive applications because of their lightweight potential. Their properties depend on carbon enrichment in austenite which, in turn, is strongly influenced by carbid…
View article: Reflections on the analysis of interfaces and grain boundaries by atom probe tomography
Reflections on the analysis of interfaces and grain boundaries by atom probe tomography Open
Interfaces play critical roles in materials and are usually both structurally and compositionally complex microstructural features. The precise characterization of their nature in three-dimensions at the atomic scale is one of the grand ch…
View article: On the resolution of atom probe tomography in the analysis of transformation interfaces
On the resolution of atom probe tomography in the analysis of transformation interfaces Open
Understanding the segregation and partitioning at transformation interfaces in steels is key to control microstructure and properties. The results from atom probe tomography used to analyze the precise composition of these interfaces are o…
View article: Numerical Investigations of the Effects of Substitutional Elements on the Interface Conditions During Partitioning in Quenching and Partitioning Steels
Numerical Investigations of the Effects of Substitutional Elements on the Interface Conditions During Partitioning in Quenching and Partitioning Steels Open
In quenched and partitioned steels, carbon partitioning is considered to be driven by a constraint para-equilibrium at the martensite/austenite interface. Using Thermo-Calc calculations, we investigated the effect of non-partitioned elemen…