About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Environmental Degradation of Multiple Principal Component Materials
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Presentation Title |
Irradiation and Oxidation Behavior of Multi-principal Element Alloys Manufactured by Different Techniques |
Author(s) |
Haiming Wen, Matthew Luebbe, Hans Pommerenke |
On-Site Speaker (Planned) |
Haiming Wen |
Abstract Scope |
Multi-principal entropy alloys (MPEAs) are a new class of alloys with great potential for extreme environment applications (for example, nuclear applications) owing to their improved phase stability and enhanced resistance to environmental degradation. However, in addition to the composition effect, microstructure also significantly affects the behavior of MPEAs in extreme environments, for example, grain size and secondary phases or precipitates. The specific microstructure obtained in MPEAs is heavily dependent on the manufacturing technique employed. In this study, solid-solution or precipitation-strengthened MPEAs with different compositions and microstructures were fabricated by conventional manufacturing (casting followed by rolling and heat treatment) or advanced manufacturing techniques (including powder metallurgy route involving rapid sintering, additive manufacturing, and severe plastic deformation). The microstructures, mechanical properties, irradiation behavior, and oxidation behavior of the manufactured MPEAs were carefully studied. Results provide insights to optimize the design and manufacturing of MPEAs to achieve superior resistance to environmental degradation. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, High-Entropy Alloys, Nuclear Materials |