| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Bcc-Superalloys
|
| Presentation Title |
High Entropy Superalloys in Advanced Modular Reactors |
| Author(s) |
Cameron Yousefian, Alexander Knowles, Alex Cackett |
| On-Site Speaker (Planned) |
Cameron Yousefian |
| Abstract Scope |
High Entropy Alloys (HEAs) have greatly expanded the compositional space for alloy design and have been shown to be promising candidates for advanced nuclear applications due to their exceptional mechanical properties and predicted radiation resistance. This work investigates the viability of low neutron cross-section refractory High Entropy Superalloys (RHESAs) for nuclear cladding/structural components and explores the challenges faced when designing for a BCC superalloy structure. CALPHAD and first principle modelling were used to identify the RHESAs design space and selected compositions were manufactured by arc-melting, thermomechanical deformation, and heat treatments. Techniques including SEM, EBSD, EDX, TEM and diffraction were used to characterise the alloys with a focus on thermal stability and precipitate evolution in tandem with computational predictions. Neutron activation and cross section modelling for down-selected alloys tested their viability for next-gen nuclear fuel cladding applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, High-Temperature Materials, Nuclear Materials |