About this Abstract |
| Meeting |
Materials in Nuclear Energy Systems (MiNES) 2025
|
| Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2025
|
| Presentation Title |
Toward Qualification of PM-HIP Structural Alloys for Irradiation-Facing Environments |
| Author(s) |
Janelle P. Wharry, Ronit Roy, Arya Chatterjee, Soumita Mondal, Elliot H Marrero-Jackson, Grayson A Nemets, Jasmyne N Emerson, Maria A Okuniewski, Caleb D Clement, Yu Lu, Yaqiao Wu, Rongjie Song, Donna P Guillen, Benjamin Sutton, David W Gandy |
| On-Site Speaker (Planned) |
Janelle P. Wharry |
| Abstract Scope |
This talk presents progress toward qualifying structural alloys manufactured by powder metallurgy with hot isostatic pressing (PM-HIP) for irradiation-facing applications in the nuclear energy industry. Steels and Ni-based alloys are workhorse structural materials in nuclear reactors. The industry has growing interest in replacing castings and forgings with PM-HIP components, but the irradiation performance of PM-HIP alloys must first be understood. Here we review progress toward delivering science-based qualification data for PM-HIP alloys, ascertained through neutron irradiation campaigns. Tensile testing and microstructural characterization results will show that PM-HIP alloys exhibit comparable or superior irradiation performance as castings or forgings. We will also highlight several unique mechanical behaviors of irradiated PM-HIP steels. In PM-HIP Grade 91 ferritic steel, for example, irradiation enables extreme ductility at yield. In PM-HIP 316L austenitic stainless steel, irradiation induces pseudoelastic shape memory-like tendencies. Collectively, our work shows promise for qualifying PM-HIP alloys for nuclear energy environments. |
| Proceedings Inclusion? |
Undecided |