About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Nanostructured Materials in Extreme Environments
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Presentation Title |
Irradiation and Corrosion Behavior of Nanostructured Grade 91 and FeCrAl Alloys for Nuclear Applications |
Author(s) |
Joshua Rittenhouse, Matthew Luebbe, Mahmut N. Cinbiz, Lingfeng He, Haiming Wen |
On-Site Speaker (Planned) |
Joshua Rittenhouse |
Abstract Scope |
Nanostructuring of steels is a promising method of improving irradiation resistance along with improving other properties including mechanical strength and potentially corrosion resistance. Kanthal D (ferritic Fe-21Cr-5Al) and Grade 91 (ferritic/martensitic Fe-9Cr-1Mo) are both candidate materials for use in fuel cladding and structural components in existing and future reactor designs. This work demonstrates that mechanical properties of ultrafine-grained and nanocrystalline Grade 91 and Kanthal D are improved prior to irradiation and better maintained under neutron irradiation at 300 and 500 <sup>o</sup>C when compared to their coarse-grained counterparts. Microstructural characterization utilizing transmission electron microscopy techniques shows the mechanisms governing the improved irradiation resistance in the nanostructured steels. Mass loss, glow discharge optical emission spectroscopy and microstructural data demonstrate the corrosion resistance of the nanostructured Grade 91 and Kanthal D, which is overall similar to and in certain cases improved compared to that of their coarse-grained counterparts. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Mechanical Properties, Characterization |