Development of Fe–P–C–Cu Immiscible Amorphous Alloys with Liquid Phase Separation

DOI Web Site 2 Citations 53 References Open Access
  • Nagase Takeshi
    Research Center for Ultra-High Voltage Electron Microscopy, Osaka University Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
  • Terai Tomoyuki
    Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University Center for International Affairs, International Education Office, Graduate School of Engineering, Osaka University
  • Matsumuro Mitsuaki
    Osaka Research Institute of Industrial Science and Technology
  • Takemura Mamoru
    Osaka Research Institute of Industrial Science and Technology

Abstract

<p>The rapid solidification microstructure and magnetic properties of melt-spun ribbons in the (Fe0.75P0.125C0.125)100-xCux (at%) alloys were investigated, focusing on the occurrence of liquid-phase separation and simultaneous amorphous-phase formation. The (Fe0.75P0.125C0.125)100-xCux alloys were designed as a combination of Fe–P–C alloy with high glass-forming ability and Cu. Amorphous-phase formation was observed in the melt-spun ribbons of the (Fe0.75P0.125C0.125)100-xCux (x = 10, 20) alloys. For the melt-spun ribbons of the (Fe0.75P0.125C0.125)100-xCux (x = 10) alloy, a composite of Fe–P–C amorphous matrix and FCC–Cu globules was obtained, whereas in the melt-spun ribbons of the (Fe0.75P0.125C0.125)100-xCux (x = 20) alloy, multistep liquid-phase separation resulted in a particular solidification microstructure.</p>

Journal

  • ISIJ International

    ISIJ International 60 (11), 2615-2624, 2020-11-15

    The Iron and Steel Institute of Japan

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