| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
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Materials and Chemistry for Molten Salt Systems
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| Presentation Title |
Development of a new nickel-based alloy hardened by nano γ’ (Ni3Al) for Molten Salt Reactors
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| Author(s) |
Adrien Delagnes, Martin Madelain, Nicolas Mari, Romain Malacarne, Olivier Taché, Jacques Perrin Toinin, Brigitte Bacroix, Yann De Carlan |
| On-Site Speaker (Planned) |
Adrien Delagnes |
| Abstract Scope |
Nickel-based alloys are attractive materials for nuclear industry and in particular for Molten Salt Reactors (MSR). They are especially considered for neutron reflectors or heat exchangers. These alloys exhibit good mechanical properties at high temperature and their resistance to corrosion in molten chloride salts is outstanding. A new nuance, Ni-20MoAlTi, for MSRs is being developed at CEA.
During a test in a purified NaCl-MgCl2 salt, at 600°C for 170 hours in flowing Ar, it presents a specific mass loss 10 times lower than that of INCONEL 625. Mechanical tests, Microstructural assessments by Small-Angle X-ray Scattering (SAXS) and Atom Probe Tomography (APT) confirmed a dense distribution of 10 nm γ' precipitates at a density close to 1.1023 m-3. The results are analyzed and discussed with respect to the objectives of developing new grades for nuclear applications |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Powder Materials |