| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work: The Rustum Roy Symposium
|
| Presentation Title |
Electromagnetic Assisted Thermal Processing Enabling Spatially Selective Phase Transformation of Metal Amorphous Nanocomposites |
| Author(s) |
Ahmed Talaat, Kevin Byerly, David W Greve, Michael E McHenry, Paul R Ohodnicki |
| On-Site Speaker (Planned) |
Ahmed Talaat |
| Abstract Scope |
Microstructure engineering by means of electromagnetic radiation at extremely high heating and cooling rates can result in unique phase transformation and spatially selective crystallization events in soft magnetic metal amorphous nanocomposites. In this work we explore radio frequency induction heating and laser processing of a range of different alloy systems in order to produce rapid thermal heating profiles enabling nanocrystallization as well as spatially selective microstructures throughout processed strips. Simulation of electromagnetic heating effects and impacts on microstructures and phase transformation upon heat generation were performed. A comparison of traditional and induction annealing approaches based on both direct coil-heating and susceptor-based heating as well as laser heating will be presented along with the results of structural and magnetic property characterization. |