| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
The Microstructure Stability of New Co-based Amorphous/Nanocomposite Alloys in Corrosive Environments |
| Author(s) |
Yuankang Wang, Lauren Wewer, Alex Leary, Ronald D. Noebe, Paul Ohodnicki, Tyler Paplham |
| On-Site Speaker (Planned) |
Yuankang Wang |
| Abstract Scope |
Cobalt-based metallic amorphous and nanocrystalline (MANC) alloys are promising candidates for high-temperature applications due to their potentially good thermal stability, and corrosion resistance at elevated temperatures. However, it has not been extensively studied in the published literature. In this project, we systematically investigated the effect of alloying elements (Fe, Mn) and glass forming elements (B, Si, Nb) on the magnetic properties, microstructure stability, and corrosion resistance of Co-based MANC alloys. Notably, glass forming elements, such as B could form protective oxide layer on the surface of Co-based MANC alloys to improve corrosion resistance. In addition, the drag effect of glass forming elements significantly prevents the grain growth of nanocomposites, improving the microstructure stability at elevated temperatures. Compared with current commercial MANC alloys, the new Co-based MANC designed in this project is highly competitive in terms of microstructural stability and corrosion resistance. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, High-Temperature Materials, Magnetic Materials |