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<p>This study systematically investigates the effects of N/B ratio on amorphous forming ability (AFA) and soft magnetic properties in Fe<sub>82.5</sub>Si<sub>2</sub>B<sub>15-x</sub>C<sub>0.5</sub>N<sub>x</sub> (x = 0, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5 at .%) amorphous alloys. The results show that the negative influence of N element on the AFA of the alloy system is more significant than that of B element. At lower N doping levels (x ≤ 0.1 at.%), the coercivity (<i>H</i><sub><i>c</i></sub>) of the ribbons is reduced, while the saturation magnetic flux density (<i>B</i><sub><i>s</i></sub>) shows no significant change. Specifically, the Fe<sub>82.5</sub>Si<sub>2</sub>B<sub>14.9</sub>C<sub>0.5</sub>N<sub>0.1</sub> alloy has a <i>B</i><sub><i>s</i></sub> value of 1.73 T and a low <i>H</i><sub><i>c</i></sub> of 6.0 A/m, which is 54.9% lower than that of the N-free alloy (13.3 A/m.) After annealing at 380 ℃, <i>B</i><sub><i>s</i></sub> slightly increases to 1.74&#xa0;T, while <i>H</i><sub><i>c</i></sub> dramatically decreases to 2.1 A/m, which exhibits excellent soft magnetic properties.</p>

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The influence of N/B ratio on the amorphous forming ability and magnetic properties of iron-based amorphous/nanocrystalline alloys

  • 期刊论文

  • 发表日期：

    2025年8月20日

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  • Peixin Fu,
  • Ke Gao,
  • Junlei Shi,
  • Yuexian Huang,
  • Weixian Zhu,
  • Pingjun Tao,
  • Yuanzheng Yang

摘要

This study systematically investigates the effects of N/B ratio on amorphous forming ability (AFA) and soft magnetic properties in Fe82.5Si2B15-xC0.5Nx (x = 0, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5 at .%) amorphous alloys. The results show that the negative influence of N element on the AFA of the alloy system is more significant than that of B element. At lower N doping levels (x ≤ 0.1 at.%), the coercivity (Hc) of the ribbons is reduced, while the saturation magnetic flux density (Bs) shows no significant change. Specifically, the Fe82.5Si2B14.9C0.5N0.1 alloy has a Bs value of 1.73 T and a low Hc of 6.0 A/m, which is 54.9% lower than that of the N-free alloy (13.3 A/m.) After annealing at 380 ℃, Bs slightly increases to 1.74 T, while Hc dramatically decreases to 2.1 A/m, which exhibits excellent soft magnetic properties.