About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Magnetic Materials
|
Presentation Title |
Effect of Nitrogen Martensite Formation on Magnetostriction in Fe-Co Alloy |
Author(s) |
Tomohiro Tabata, Matahiro Komuro, Yusuke Asari, Masafumi Noujima, Shohei Terada |
On-Site Speaker (Planned) |
Tomohiro Tabata |
Abstract Scope |
It is known that permendur, an iron-cobalt bimetallic alloy, exhibits the highest saturation magnetization (μ0MS) of 2.4 T in bulk soft magnetic materials. However, because of its very high saturation magnetostriction (λS) of 70 ppm, the magnetic behavior of permendur undergoes significant changes due to external forces. On the other hand, our group has been studying the effects of nitrogen incorporation and martensite formation on saturation magnetization in iron-based alloys. Last year, our group reported on the improvement of saturation magnetization by nitrogen martensite formation in iron-cobalt alloy systems. In order to apply this material to power electronics, it is necessary to investigate its magnetostrictive properties. However, the effect of nitrogen incorporation on the magnetostriction of iron-cobalt alloys has not been studied. In this presentation, we report our experimental investigation of the relationship between stress and magnetic properties in iron-cobalt nitrogen martensite. |
Proceedings Inclusion? |
Planned: |
Keywords |
Iron and Steel, Magnetic Materials, Phase Transformations |