In this report, we investigated the effects of carbon and microstructure of the precursor on the magnetic performances based on a developed method for bulk preparation to synthesize Fe–CN (Minnealloy) soft magnetic materials. The melt-spun ribbons of Fe1−xCx were 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 phase. The carbon effects were studied by the X-ray diffraction (XRD) and Wavelength-dispersive spectroscopy (WDS) to reveal the redistribution of carbon during the thermal treatment and its effects on nitridation. The microstructure variation during the thermal treatment for the Fe–C precursor was observed, which could be explained by the formation of non-uniform porous structure during the oxidation and reduction steps and also the migration of the carbon atoms.
|Original language||English (US)|
|Title of host publication||TMS 2020 149th Annual Meeting and Exhibition Supplemental Proceedings|
|Editors||Zhiwei Peng, Jiann-Yang Hwang, Jerome Downey, Dean Gregurek, Baojun Zhao, Onuralp Yucel, Ender Keskinkilic, Tao Jiang, Jesse White, Morsi Mahmoud|
|Number of pages||12|
|State||Published - 2020|
|Event||149th Annual Meeting and Exhibition of the Minerals, Metals and Materials Society, TMS 2020 - San Diego, United States|
Duration: Feb 23 2020 → Feb 27 2020
|Name||Minerals, Metals and Materials Series|
|Conference||149th Annual Meeting and Exhibition of the Minerals, Metals and Materials Society, TMS 2020|
|Period||2/23/20 → 2/27/20|
Bibliographical notePublisher Copyright:
© 2020, The Minerals, Metals & Materials Society.
- Low-temperature nitridation
- Soft magnetic materials