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Abstract <p>Amorphous Fe–Ni–Nb–B alloys with different iron/nickel ratios and different boron concentrations were obtained in the form of ribbons by planar flow method. All the ribbons were found to be X-ray amorphous, and their crystallization occurs in one or two stages depending on chemical composition. The onset crystallization temperature depends significantly on iron/nickel ratio and boron content in the samples. Magnetic susceptibility of the samples was studied at heating from amorphous state to crystalline and liquid states (in a high temperature region) and subsequent cooling. An anomalous increase of magnetic susceptibility was detected during heating in the temperature range of 1000–1100 K. This can be associated with the decomposition of metastable (Fe,Ni)<sub>23</sub>B<sub>6</sub> phase. Some parameters of the electronic structure in Fe–Ni–Nb–B melts: paramagnetic Curie temperature, effective magnetic moment per atom and density of electron states at Fermi level were calculated from the experimental data.</p>

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Improving Glass-Forming Ability and Magnetic Properties of Fe–Ni–Nb–B Alloys

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • V. E. Sidorov,
  • A. A. Sabirzyanov,
  • S. A. Petrova,
  • B. A. Rusanov,
  • V. I. Lad’yanov,
  • D. P. Ardasheva,
  • M. S. Konovalov,
  • P. A. Chugunov

摘要

Abstract

Amorphous Fe–Ni–Nb–B alloys with different iron/nickel ratios and different boron concentrations were obtained in the form of ribbons by planar flow method. All the ribbons were found to be X-ray amorphous, and their crystallization occurs in one or two stages depending on chemical composition. The onset crystallization temperature depends significantly on iron/nickel ratio and boron content in the samples. Magnetic susceptibility of the samples was studied at heating from amorphous state to crystalline and liquid states (in a high temperature region) and subsequent cooling. An anomalous increase of magnetic susceptibility was detected during heating in the temperature range of 1000–1100 K. This can be associated with the decomposition of metastable (Fe,Ni)23B6 phase. Some parameters of the electronic structure in Fe–Ni–Nb–B melts: paramagnetic Curie temperature, effective magnetic moment per atom and density of electron states at Fermi level were calculated from the experimental data.