| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
2025 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-103: Enabling Gen-IV Fission and Gen-I Fusion Reactors via Ductile Refractory Alloys |
| Author(s) |
Luke E. Gaydos, Hailong Huang, Zongyang Lyu, Prashant Singh, Duane Johnson, Ryan Ott, Nicolas Argibay |
| On-Site Speaker (Planned) |
Luke E. Gaydos |
| Abstract Scope |
For decades, a technological limitation in the energy and aerospace sectors has been the availability of alloys for extreme operating conditions that demand resistance to combined high thermo-mechanical stresses, irradiation, and corrosive environments. Nickel-based superalloys, like Inconel 718, have traditionally been used for these applications, but suffer from a low melting temperature of 1500°C. Refractory alloys enable an increase in melting temperature (i.e. tungsten melts at 3400°C) and would enable a non-incremental improvement in the aforementioned industries. However, their processability, low-temperature brittleness, and susceptibility to degradation in corrosive environments have been limiting factors to their widespread adoption. Balancing strength, ductility, corrosion resistance, and manufacturability are key to enabling the use of refractory alloys for extreme environments. In this poster, we offer experimental results highlighting the successful theory-guided search in composition space to achieve exemplary refractory multi-principal-element alloys exhibiting RT ductility (improved manufacturability) and high-temperature strength and corrosion resistance. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
High-Entropy Alloys, High-Temperature Materials, Mechanical Properties |