|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||The processing and application of Fe-6.5%Si ribbons and flakes
||Gaoyuan Ouyang, Iver Anderson, Matthew Kramer, Jun Cui
|On-Site Speaker (Planned)
The performance of electrical steel depends on its silicon content. Fe-6.5%Si has higher resistivity and lower iron losses than the widely used Fe-3.2%Si. However, Fe-6.5%Si is difficult to fabricate using the traditional cold-roll process since the ordered phases formed during the process embrittle the alloy. Rapid solidification is a viable route to fabricate Fe-6.5%Si thin sheet since it suppresses the embrittling ordered phases. We have established the relationship among cooling rate, chemical ordering, mechanical, and magnetic properties of Fe-6.5%Si during the melt spinning process, which lays the foundation for preparation Fe-6.5%Si ribbon with a tunable ductility. We constructed standard stack laminates for motor stators using Fe-6.5%Si, and developed a novel ribbon bundle stator concept that uses Fe-6.5%Si narrow ribbons. We also developed novel melt spinning techniques that directly yield ductile Fe-6.5%Si flakes, which can be coated and consolidated into near net shape motor stators or inductors.
||Magnetic Materials, Solidification, Iron and Steel