Unique influence of heating rate on the magnetic softness of Fe81.5Si0.5B4.5P11Cu0.5C2 nanocrystalline alloy

Lixian Jiang, Yan Zhang, Xing Tong, Tsuyoshi Suzuki, Akihiro Makino

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Fe81.5Si0.5B4.5P11Cu0.5C2 nanocrystalline alloy with high Fe concentration possesses a finely uniform nanocrystalline structure and numerous α-Fe crystals with a mean grain size of ∼17 nm based on XRD patterns. Such crystals precipitated from the amorphous matrix. Favorable soft magnetic properties, small value of coercivity (Hc) of ∼4.8 A/m, and high magnetic flux density (Bs) of ∼1.53 T can be achieved by slow heat treatment (heating rate of ∼10 °C/min). In this case, one-step annealing at a low heating rate is truly antipodal to Fe–Si–B–P–Cu alloy. We analyzed the nanocrystallized mechanism during annealing with various heating rates in Fe81.5Si0.5B4.5P11Cu0.5C2 alloy, which inevitably simplified the industrial crystallization process by one-step annealing at a low heating rate.

Original languageEnglish
Pages (from-to)148-152
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume471
DOIs
Publication statusPublished - 2019 Feb 1

Keywords

  • Amorphous/nanocrystalline
  • Coercivity
  • Heating rate
  • Soft magnetic

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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