| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials for Energy Applications
|
| Presentation Title |
Processing and Characteristics of Nanostructured Ferritic Alloys for Nuclear Reactor Applications |
| Author(s) |
Thak Sang Byun, David T Hoelzer |
| On-Site Speaker (Planned) |
Thak Sang Byun |
| Abstract Scope |
The powder-metallurgy based nanostructured ferritic alloys (NFAs) have been considered as prominent materials for future fission and fusion reactor core components because of their excellent creep strength and resistance to radiation-induced degradation of mechanical properties. Special milling and consolidation processes have been developed for improving the mechanical properties of NFAs as their nanocluster-strengthened microstructures often show high-temperature embrittlement and poor ductility. This talk is to summarize the processing routes and practices that have been developed to produce advanced NFAs with excellent high-temperature mechanical properties, as well as with uniquely-high defect sink efficiencies. The discussion will focus on the processing development efforts for improving the fracture toughness and fabricability of the phase-transformable 9Cr and 12Cr NFAs and the 14Cr NFAs with highly stabilized microstructures. It was demonstrated that a carefully designed milling process combined with a low temperature consolidation and/or a thermomechanical treatment could lead to significant improvement in mechanical properties. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |