| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Bulk Metallic Glasses XIX
|
| Presentation Title |
New (Fe0.5Co0.5)71.64B19.104Si4.776Nb3.98Cu0.5 Bulk Glassy Alloy: A Comprehensive Time-resolved Synchrotron X-ray Study |
| Author(s) |
Mihai Stoica, Gavin Vaughan, Jonathan Wright, Jörg F. Löffler |
| On-Site Speaker (Planned) |
Mihai Stoica |
| Abstract Scope |
Finemet and Vitroperm-type nanocrystalline alloys are very attractive for applications. Their particular nanostructure, consisting of (Fe,Si) grains embedded in a residual amorphous matrix, results from the thermal treatment of the metallic glass precursor. The magnetocrystalline anisotropy is averaged-out because of the very small dimension of the grains and their uniform distribution. This makes them extremely soft-magnetic, but mechanically quite fragile and brittle. Recently we demonstrated that by microalloying of Cu to a known bulk metallic glass-forming alloy one can obtain a similar structure in bulk form, which is more robust and reveals very good and tailorable soft-magnetic properties. The nanocrystallization process can be controlled over an interval of more than 100 K. Here we present a comprehensive study of this process by analyzing the reciprocal-space and direct-space data obtained from in-situ X-ray diffraction using high-energy, high-intensity synchrotron radiation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Phase Transformations, Other |