| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Nuclear Applications III
|
| Presentation Title |
Radiation Resistance of Nanostructured Ferritic Alloys Produced via Various Methods |
| Author(s) |
Eda Aydogan, Dalong Zhang, Xiang Wang, Jens Darsell, Xiao Li, Osman El-Atwani, Kurt Lavender, Mark Rhodes, Justin Olson, Kayla Yano, Tingkun Liu, Ramprashad Prabhakaran, Iver Anderson, Stuart Maloy |
| On-Site Speaker (Planned) |
Eda Aydogan |
| Abstract Scope |
Nanostructured ferritic alloys (NFAs) having ultra-fine grain structure and high concentration of nano-size (~2-5 nm) oxide particles are considered as one of the best candidates for structural components in advanced nuclear reactors due to their excellent irradiation resistance, high strength and resistance to oxidation/corrosion under extreme conditions of temperature and pressure. However, they are produced by lengthy and costly multi-step powder metallurgical (PM) methods. Here, we have developed 14WYT NFAs produced by shear-based extrusion methods and shear extrusion followed by cold spraying of gas atomized powders without ball milling. The microstructural analyses have indicated ~10^22 m^-3 nano-oxide density which is comparable with the PM-produced alloys. Comparative irradiation studies have been conducted on PM-produced and directly extruded alloys at 300 and 450 °C up to 10 dpa. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Shaping and Forming |