| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
O-36: Carbon and Microstructure Effects on the Magnetic Properties of Fe-CN Soft Magnetic Materials (Minnealloy) |
| Author(s) |
Guannan Guo, Jinming Liu, Jian-Ping Wang |
| On-Site Speaker (Planned) |
Guannan Guo |
| Abstract Scope |
In this report, we investigate the effects of carbon and microstructure of the precursor on the magnetic performance based on a developed method for bulk preparation to synthesis Fe-CN magnetic materials. The melt-spun ribbons of Fe-C can be obtained to improve the efficiency of the nitrogen diffusivity by introducing porous and defects inside the grains, which increases the volume fraction of α”-Fe16N2. The carbon effects were studied by the X-ray diffraction (XRD) and Wavelength-dispersive spectroscopy (WDS) to reveal the redistribution of carbon during the treatment and the effects on nitriding. The Fe-C precursor prepared by melt spinning and the microstructure variation during the treatment is obtained by the Scanning Electron Microscopy (SEM) and Transmission electron microscopy (TEM) to reveal the formation of porous during the oxidation/reduction and the movements of the carbon atoms. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |