| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials for Energy Applications
|
| Presentation Title |
High Temperature Corrosion and Irradiation Behavior of Silicon Carbide and Nanostructured Ferritic Alloy Composites |
| Author(s) |
Kaustubh K. Bawane, Kathy Lu, Xian-Ming Bai, Kaijie Ning, Wei-Ying Chen, Meimei Li |
| On-Site Speaker (Planned) |
Kaustubh K. Bawane |
| Abstract Scope |
Silicon carbide and nanostructured ferritic alloy (SiC-NFA) composites have the potential to maintain the outstanding high temperature corrosion and irradiation resistance required for nuclear claddings. In this work, high temperature corrosion studies on SiC-NFA composites were performed at various temperatures in air+water vapor environment. The improved oxidation resistance for higher SiC content composites is attributed to improved kinetics for the formation of dense Cr2O3 and SiO2 protective layers. In-situ transmission electron microscopy (TEM) was used to study microstructural evolution of NFA and SiC-NFA composite under 1 MeV Kr ion irradiation at 300oC and 450oC. NFA and SiC-NFA showed similar loop density and size during irradiation at 300oC. However, at 450oC, SiC-NFA composites showed significantly lower loop density and size. At 300oC, ½<111> type loops were observed in both NFA and SiC-NFA. Interestingly, at 450oC, <100> type loops were dominant in NFA while ½<111> loops were dominant in the SiC-NFA sample. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Powder Materials, Nuclear Materials, Characterization |