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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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Meslin, Estelle
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Accurate quantification of dislocation loops in complex functional alloys enabled by deep learning image analysiscitations
- 2022Effect of grain boundary planes on radiation-induced segregation (RIS) at near Σ3 grain boundaries in Fe-Cr alloy under ion irradiationcitations
- 2022Effect of cooling rate on the microstructures of three low carbon alloys with different manganese and molybdenum contentscitations
- 2022Impact of the local microstructure fluctuations on radiation-induced segregation in dilute Fe-Ni and Ni-Ti model alloys: a combined modeling and experimental analysiscitations
- 2021Helium causing disappearance of a/2<111> dislocation loops in binary Fe-Cr ferritic alloyscitations
- 2021Thermodynamic model for lattice point defect-mediated semi-coherent precipitation in alloyscitations
- 2020Comparative study of deuterium retention in irradiated Eurofer and Fe–Cr from a new ion implantation materials facilitycitations
- 2020Role of displacement cascades in Ni clustering in a ferritic Fe-3.3at.%Ni model alloy: comparison of heavy and light particle irradiationscitations
- 2019Combined effect of injected interstitials and He implantation, and cavities inside dislocation loops in high purity Fe-Cr alloyscitations
- 2015Characterization of the ion-amorphization process and thermal annealing effects on third generation SiC fibers and 6H-SiCcitations
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article
Effect of cooling rate on the microstructures of three low carbon alloys with different manganese and molybdenum contents
Abstract
The title of the preprint has changed after rewiewing ; International audience ; Low-alloy 16 to 20MND5 steels are used for the fabrication of nuclear reactor components. During manufacturing, the component is austenised then quenched: heterogeneities in microstructure and chemistry form during this step. Understanding the impact on these microstructures of two of the most important alloying elements of 16 to 20MND5 steels, Mo and Mn, can help predict how the component mechanical properties will evolve during tempering and during aging. The impact of molybdenum and manganese, as well as the impact of the cooling rate, are studied on microstructures of three model steels, FeCMo, FeCMn and FeCMoMn, using continuous cooling transformation (CCT) diagrams and electron backscattering diffraction characterizations. FeCMoMn is proved to be a good model for 16 to 20MND5 steels, based on CCT diagram and hardness considerations. Molybdenum and manganese have no impact on the misorientation angle/axis pairs nor on the misorientation angle distributions in martensitic microstructures. In bainitic microstructures however, the presence of Mn seems to favour the presence of block boundaries with a misorientation of about 59° around [433]. Investigations carried out in a prior austenitic grain shows a continuous evolution in the crystallographic features from martensite to slowly cooled bainite, with the presence of block and sub-block boundaries.