About this Abstract |
Meeting |
2nd World Congress on High Entropy Alloys (HEA 2021)
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Symposium
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2nd World Congress on High Entropy Alloys (HEA 2021)
|
Presentation Title |
High-throughput, High-temperature Heavy Ion Irradiation of Annealed CrFeMnNi Magnetron-sputtered Combinatorial Thin Film |
Author(s) |
Calvin A. Parkin, Michael Moorehead, Mohamed Elbakhshwan, Kumar Sridharan, Jason Hattrick-Simpers, Alan Savan, Alfred Ludwig, Adrien Couet |
On-Site Speaker (Planned) |
Adrien Couet |
Abstract Scope |
In-core structural materials for advanced reactor designs are expected to demonstrate superior resistance to environmental degradation to currently-licensed stainless steels and ferritic-martensitic steels. High-entropy alloys (HEAs) present the opportunity to advance fundamental understanding of matrix composition as a design parameter for irradiation resistance, opening novel alloy design pathways for advanced reactor applications. Due to the vast range of the HEA compositional space, rapid screening of alloy compositions for nuclear reactors must adopt high-throughput experimental techniques to generate libraries of data linking trends in resistance to irradiation with composition. 4-inch diameter thin films, compositionally graded in CrFeMnNi, have been fabricated by magnetron co-sputtering, annealed at 500 °C for 48 hours, and irradiated to 100 dpa at 500 °C using an automated stage with laser heating. Libraries were characterized before and after irradiation using XRD, nano-indentation, profilometry, and for select compositions, TEM. Results are discussed alongside the limitations of irradiating thin films. |
Proceedings Inclusion? |
Undecided |