People | Locations | Statistics |
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Ferrari, A. |
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Schimpf, Christian |
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Dunser, M. |
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Thomas, Eric |
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Gecse, Zoltan |
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Tsrunchev, Peter |
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Della Ricca, Giuseppe |
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Cios, Grzegorz |
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Hohlmann, Marcus |
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Dudarev, A. |
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Mascagna, V. |
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Santimaria, Marco |
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Poudyal, Nabin |
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Piozzi, Antonella |
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Mørtsell, Eva Anne |
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Jin, S. |
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Noel, Cédric |
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Fino, Paolo |
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Mailley, Pascal |
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Meyer, Ernst |
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Zhang, Qi |
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Pfattner, Raphael | Brussels |
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Kooi, Bart J. |
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Babuji, Adara |
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Pauporte, Thierry |
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Joubert, Jean-Marc
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2023Influence of chemical composition on coarsening kinetics of coherent L12 precipitates in FCC complex concentrated alloys
- 2022Experimental investigation and thermodynamic re-assessment of the Cr-Mo-Ti system
- 2022EXPERIMENTAL STUDY AND THERMODYNAMIC MODELING OF THE Cr-Fe-Mo-Ti SYSTEM
- 2021CALPHAD assessment of the Cr-Fe-Mo-Ti system for the development of high entropy alloys.
- 2021Metallic fission products phases in nuclear fuels: Thermodynamic modelling of the Mo-Pd-Rh System
- 2021T2 phase site occupancies in the Cr-Si-B system: a combined synchroton-XRD/first-principles studycitations
- 2021Experimental study, first-principles calculation and thermodynamic modelling of the Cr–Fe–Nb–Sn–Zr quinary system for application as cladding materials in nuclear reactors.citations
- 2020Phase transformations during cooling from the βZr phase temperature domain in several hydrogen-enriched zirconium alloys studied by in situ and ex situ neutron diffractioncitations
- 2020Optimization of Criteria for an Efficient Screening of New Thermoelectric Compounds: The TiNiSi Structure-Type as a Case-Studycitations
Places of action
conferencepaper
EXPERIMENTAL STUDY AND THERMODYNAMIC MODELING OF THE Cr-Fe-Mo-Ti SYSTEM
Abstract
International audience ; Cobalt constitutes a large part of the radioactive waste in the primary circuit of nuclear reactors. Replacement of cobalt-based hard coatings has been the subject of research for many years in nuclear applications. Up to now, there is no alloy capable to withstand abrasion and corrosion at 350°C and 150 bar pressure during long cycles. Complex concentrated alloys constituted by Cr-Fe-Mo-Ni-Ti have shown promising properties for these applications [1].The Calphad method was chosen to obtain the most interesting compositions of this system. For this purpose, a critical evaluation of all constitutive subsystems was carried out. Since this system has several Frank-Kasper phases (σ, µ, χ, R, Laves), models were discussed and chosen depending on the crystal structure. Lattice stability and formation enthalpy of stable and metastable compounds were calculated by DFT. It has also been found that some systems lack reliable data or that contradictions are present in the literature. Therefore, experimental determination of phase equilibria in these systems was carried out. Samples of the Cr-Mo-Ti system were synthesized to determine the phase boundaries of the Laves phases and the extension of the Cr-Mo miscibility gap in the ternary system. [1] G. Huser et al., « Study of the elaboration of high entropy material from powder by laser additive manufacturing », Procedia CIRP, vol. 94, p. 270-275, janv. 2020, doi:10.1016/j.procir.2020.09.051.