| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
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| Presentation Title |
Spatially Tuned Properties of Soft Magnetic Alloys by Transverse Induction Annealing |
| Author(s) |
Tyler W. Paplham, Ahmed Talaat, David W. Greve, Paul R. Ohodnicki |
| On-Site Speaker (Planned) |
Tyler W. Paplham |
| Abstract Scope |
Traditional induction heating setups wherein the workpiece is located inside the coil are known to produce homogeneous heating across the workpiece surface. However, by locating the workpiece outside the end of the coil, heating is highly inhomogeneous, with steady-state temperature differences greater than 300 °C predicted across the centimeter scale. This allows for the possibility of a continuously varied microstructure, and by careful choice of coil geometry, current, and frequency, controlled tuning of the magnetic/mechanical properties. This is particularly attractive in bulk crystalline soft magnetic alloys for motor applications, but may also be of interest for amorphous/nanocrystalline soft magnetic ribbon. Work presented will demonstrate ability to produce tuned microstructures across small length scales in both bulk and nanocrystalline alloys, develop an analytical model for transverse induction annealing corroborated by FEA simulation, and discuss potential challenges of this technique. |