| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys IV: Mechanical Behavior
|
| Presentation Title |
Strong and Ductile High Temperature Multicomponent Soft Magnet Through Widmanstätten Precipitates |
| Author(s) |
Liuliu Han, Fernando Maccari, Ivan Soldatov, Rudolf Schäfer, Nicolas Peter, Oliver Gutfleisch, Dierk Raabe |
| On-Site Speaker (Planned) |
Liuliu Han |
| Abstract Scope |
The fast growth of sustainable energy production requires the electrification of transport with electrical motors as key components. These need soft magnets with high saturation magnetization, mechanical strength, and thermal stability to operate efficiently and safely. Reconciling these properties in one material is challenging because thermally-stable microstructures for strength increase conflict with magnetic performance. Here, we present a material concept that combines thermal stability, soft magnetic response, and high mechanical strength. The strong and ductile soft ferromagnet is realized as a multicomponent alloy in which precipitates with a large aspect ratio form a Widmanstätten pattern. The material shows excellent magnetic and mechanical properties at high temperatures while the reference alloy with identical composition devoid of precipitates significantly loses its magnetization and strength at identical temperatures. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, High-Temperature Materials, Mechanical Properties |