About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Environmental Degradation of Multiple Principal Component Materials
|
Presentation Title |
High Entropy Alloys for Advanced Modular Reactors |
Author(s) |
Cameron Yousefian, Alexander Knowles |
On-Site Speaker (Planned) |
Cameron Yousefian |
Abstract Scope |
High Entropy Alloys (HEAs) have greatly expanded the compositional space for alloy design and have since shown to be promising candidates for advanced nuclear applications due to their exceptional mechanical properties and radiation resistance. This work investigates the viability of upscaling the production of low neutron cross-section refractory HEAs (RHEAs) for nuclear cladding/structural components and understanding the challenges faced when achieving uniform and repeatable compositions in bulk. Arc-melting, thermomechanical deformation, and heat treatments were employed for alloy production. Techniques including SEM, EBSD, EDX and diffraction were used to characterise the alloys. Long-term high-temperature creep tests were performed to evaluate the stability and structural integrity of RHEAs during prolonged reactor operation. Key factors affecting the creep performance, such as precipitate formation, grain size, texture and deformation mechanisms are discussed. The findings help provide insight into the scalability of HEA production and explore the long-term stability and creep resistance at elevated temperatures. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Nuclear Materials, High-Temperature Materials |