Carbon and Microstructure Effects on the Magnetic Properties of Fe–CN Soft Magnetic Materials (Minnealloy)

Guannan Guo, Jinming Liu, Jian Ping Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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 languageEnglish (US)
Title of host publicationTMS 2020 149th Annual Meeting and Exhibition Supplemental Proceedings
EditorsZhiwei Peng, Jiann-Yang Hwang, Jerome Downey, Dean Gregurek, Baojun Zhao, Onuralp Yucel, Ender Keskinkilic, Tao Jiang, Jesse White, Morsi Mahmoud
PublisherSpringer
Pages1841-1852
Number of pages12
ISBN (Print)9783030362959
DOIs
StatePublished - Jan 1 2020
Event149th Annual Meeting and Exhibition of the Minerals, Metals and Materials Society, TMS 2020 - San Diego, United States
Duration: Feb 23 2020Feb 27 2020

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

Conference149th Annual Meeting and Exhibition of the Minerals, Metals and Materials Society, TMS 2020
CountryUnited States
CitySan Diego
Period2/23/202/27/20

Keywords

  • FeN
  • Fe–CN
  • Low-temperature nitridation
  • Minnealloy
  • Soft magnetic materials

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  • Cite this

    Guo, G., Liu, J., & Wang, J. P. (2020). Carbon and Microstructure Effects on the Magnetic Properties of Fe–CN Soft Magnetic Materials (Minnealloy). In Z. Peng, J-Y. Hwang, J. Downey, D. Gregurek, B. Zhao, O. Yucel, E. Keskinkilic, T. Jiang, J. White, & M. Mahmoud (Eds.), TMS 2020 149th Annual Meeting and Exhibition Supplemental Proceedings (pp. 1841-1852). (Minerals, Metals and Materials Series). Springer. https://doi.org/10.1007/978-3-030-36296-6_170