| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Stability in Extreme Environments II
|
| Presentation Title |
The Effect of Alloying Elements and Atmosphere on the Oxidation of NiCr Model Alloys |
| Author(s) |
Juho Lehmusto, Marie Romedenne, Rishi Pillai, Bruce A. Pint |
| On-Site Speaker (Planned) |
Juho Lehmusto |
| Abstract Scope |
Many industrial high-temperature processes are carried out under conditions with varying levels of water vapor and a cyclic temperature profile, resulting in faster material degradation and oxide scale spallation, which leaves the unprotected alloy surface prone to further attack. The challenge regarding many industrial processes is, that even though the synergistic impact of oxygen-containing species on high-temperature oxidation can be designated, it is difficult to separate the roles of different oxygen sources. Furthermore, the combined effects of thermal cycling and water vapor on oxidation have not been addressed comprehensively. The goal of the study was to better understand the high-temperature corrosion of model NiCr-alloys in the presence of water vapor and thermal cycling. Specific attention was paid to the effects of Al and Ti additions because of their importance in strengthening Ni-based commercial alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Aluminum, Titanium |