| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Meeting Materials Challenges for the Future of Fusion Energy
|
| Presentation Title |
Scale-Up of Advanced Castable Nanostructured Alloys for Fusion First-Wall/Blanket Applications |
| Author(s) |
Ying Yang, Weicheng zhong, Yanli Wang, Xiang Chen, wei tang, Marie Romedenne, Kevin Field, Tim Graening, QQ Ren, Bruce Pint, yutai Katoh |
| On-Site Speaker (Planned) |
Ying Yang |
| Abstract Scope |
Advanced Castable Nanostructured Alloys (CNAs) are newly developed reduced-activation ferritic/martensitic (RAFM) steels for use in the fusion-energy subsystems such as the integrated first-wall and blanket. The state-of-the-art CNAs can achieve a high volume-fraction and number-density of MX (M=Ti, Ta, V) nanocarbides in the microstructure through conventional, economical and scalable casting/thermomechanical technologies. These MX nanoprecipitates in CNAs help to retain the microstructure and creep resistance beyond the maximum operation temperature of existing RAFM steels. As US DOE and fusion industries envision the first pilot power plant before or in mid-century, the ORNL-developed CNAs are front runner candidates for the structural materials as funded by the DOE FES and ARPA-E offices through the GAMOW program. In this presentation, we will report the viability and advantages of industrial-scale production of CNAs through comprehensive evaluation of properties such as tensile, creep-rupture, low-cycle fatigue, fracture toughness, welding, ion/neutron irradiation and liquid-metal compatibility. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Mechanical Properties, Other |