| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Stability in Extreme Environments
|
| Presentation Title |
Surface Roughness and Oxidation Kinetics in Ni-based Single-crystal Superalloys |
| Author(s) |
Aidan O'Donnell, Jean-Briac le Graverend |
| On-Site Speaker (Planned) |
Aidan O'Donnell |
| Abstract Scope |
It is already known that surface roughness has a tremendous effect on fatigue, but there is also an effect on oxidation kinetics. Ni-based single-crystal Samples with different surface roughness ranging from 0.09 to 2.5 microns were tested at 1050C in a thermogravimetric analyzer (TGA) for 100h. it was revealed that the oxidation kinetics depends on the surface roughness in a non-linear manner, which was attributed to a coupling between the oxidazing molecule size and the surface profile. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Characterization, Environmental Effects |