| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Electrical Steels
|
| Presentation Title |
Subsurface Microstructure for Silicon Steel With Ultra-Low Iron Loss |
| Author(s) |
So-Hyeon Lee, Jiheon Jeon, Seong hyeon Yoo, Jae Hyeon Koh, Chun Ku Kang, Ju-Young Kim |
| On-Site Speaker (Planned) |
So-Hyeon Lee |
| Abstract Scope |
Non-oriented silicon steel is a material with soft magnetic properties in the sheet plane, characterized by a high silicon content and a <100>//ND texture that gives high flux density and low iron loss. These properties provide the advantages of application for electric motor. However, the magnetic performance degrades at high frequencies by increase of anomalous eddy current loss, leading to overall iron loss, which is composed of hysteresis, eddy current, anomalous eddy current loss. In this study, we focus on investigating the microstructure of the subsurface to reduce the anomalous losses and the constant hysteresis losses. We prepared silicon steels with varying subsurface microstructure through different conditions of final annealing. The subsurface microstructure and iron loss were analyzed under atmospheric conditions during the final annealing process, and we discuss effect of subsurface microstructure on magnetic properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Iron and Steel, Surface Modification and Coatings |