| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Structure and Dynamics of Metallic Glasses
|
| Presentation Title |
Analysis of Multi-Nucleation and Growth Behavior in Fe-Co Amorphous Matrix with Varied Immiscible Elements |
| Author(s) |
Subin An, Wook Ha Ryu, Eun Soo Park |
| On-Site Speaker (Planned) |
Subin An |
| Abstract Scope |
Fe-based nanocrystalline soft magnetic materials are crucial for inductor cores, demanding higher performance as the electronics industry advances. Maximizing ferromagnetic elements like Fe and Co is essential for property enhancement. However, transitioning to industrial mass production requires ensuring glass-forming ability (GFA) and nanocrystalline control. However, increasing the ratio of ferromagnetic elements in existing nanocrystalline compositions poses significant challenges for industrial commercialization.
This study introduces additional elements with positive mixing enthalpy with Fe, such as Cu, to act as nucleation sites for nanocrystals. By forming nanoclusters of various immiscible elements within the Fe amorphous matrix, we achieved different crystallization onset points. The designed composition showed a lower primary crystallization onset temperature and broader crystallization behavior over a wider temperature range compared to single-element additions. The nanocrystalline size distribution exhibited multiple distinct sizes, promoting nucleation over growth and allowing control of desired nanocrystal size and fraction. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, Solidification, Magnetic Materials |