| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Multiple Principal Component Materials
|
| Presentation Title |
Cyclic Oxidation of Oxide Dispersion Strengthened Multi-Principal Element Alloys |
| Author(s) |
Timothy Smith, Bryan Harder, Christopher Kantzos, Paul Gradl, Aaron Thompson, Austin Whitt, Timothy Gabb |
| On-Site Speaker (Planned) |
Timothy Smith |
| Abstract Scope |
The need for metal alloys which are suitable for additive manufacturing (AM) processes (e.g., laser powder bed fusion (LPBF)) that can perform at temperatures above 1000°C has led to a resurgence of interest in printable oxide dispersion strengthened (ODS) alloys. Concurrently, multi-principal element alloys (MPEAs) are an interesting new class of printable alloys which have been shown to exhibit both notable strength and ductility for a wide range of temperature and stresses. Recently, NASA developed a MPEA-ODS alloy designed for AM, called GRX-810, which revealed exceptional tensile and creep performance at temperatures of 1093°C and above. In this study, the cyclic oxidation behavior of GRX-810, NiCoCr-ODS, and AM NiCoCr is tested and characterized at 1100°C, 1200°C, and 1300°C. The oxidation behavior of the three multi-principal element alloys is compared to alumina forming single crystal Ni-base superalloys as well as chromia forming wrought alloys, such as superalloy 718 and 625. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Environmental Effects |