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<p>This paper utilizes Thermo-Calc thermodynamic calculation software to analyze the equilibrium phase precipitation behavior of different elements and alloy types, providing a theoretical basis for the subsequent setting of heat treatment parameters. Furthermore, this study investigates the texture evolution and magnetic property changes of iron-based soft magnetic materials with varying Co (25%, 35%, 50%) and Si (0.5%, 0.1%) contents (pure iron, Fe-Co alloys, and Fe-Si alloys) under a full-process treatment including a normalization process at 950&#xa0;°C for 5&#xa0;min and an annealing process at 900&#xa0;°C for 1&#xa0;h. The results indicate that as the Co content in soft magnetic materials increases, A<sub>c1</sub> and A<sub>c3</sub> temperatures during the heating stage gradually rise, with a more pronounced difference observed in A<sub>r1</sub> for Fe-Si alloys. Hot-rolled Fe-Co alloy sheets primarily exhibit γ texture, while α and α* textures are also observed in Fe-Co alloys. In the annealed sheets, pure iron exhibits a predominantly γ orientation, with {114} &lt; 481 &gt; and {111} &lt; 112 &gt; textures coexisting. It was also found that as the Co content increases, the texture distribution gradually shifts from the γ fiber orientation toward the α* line. When the Co content is 50%, the magnetic properties are <i>B</i><sub><i>10000</i></sub> = 2.37&#xa0;T and <i>P</i><sub><i>1.5/50</i></sub> = 4.18W/kg. This study, by combining thermodynamic software simulation with full-process experimental analysis, provides new insights into the texture control of soft magnetic materials.</p>

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Effect of (Co,V,Si) Alloy Content on the Properties and Texture Heritability of Low-Frequency Soft Magnetic Materials

  • 期刊论文

  • 发表日期：

    2026年4月11日

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  • Shihao Wang,
  • Zhichao Li,
  • Ling Cheng,
  • Yutang Wang,
  • Qiming Wang

摘要

This paper utilizes Thermo-Calc thermodynamic calculation software to analyze the equilibrium phase precipitation behavior of different elements and alloy types, providing a theoretical basis for the subsequent setting of heat treatment parameters. Furthermore, this study investigates the texture evolution and magnetic property changes of iron-based soft magnetic materials with varying Co (25%, 35%, 50%) and Si (0.5%, 0.1%) contents (pure iron, Fe-Co alloys, and Fe-Si alloys) under a full-process treatment including a normalization process at 950 °C for 5 min and an annealing process at 900 °C for 1 h. The results indicate that as the Co content in soft magnetic materials increases, Ac1 and Ac3 temperatures during the heating stage gradually rise, with a more pronounced difference observed in Ar1 for Fe-Si alloys. Hot-rolled Fe-Co alloy sheets primarily exhibit γ texture, while α and α* textures are also observed in Fe-Co alloys. In the annealed sheets, pure iron exhibits a predominantly γ orientation, with {114} < 481 > and {111} < 112 > textures coexisting. It was also found that as the Co content increases, the texture distribution gradually shifts from the γ fiber orientation toward the α* line. When the Co content is 50%, the magnetic properties are B10000 = 2.37 T and P1.5/50 = 4.18W/kg. This study, by combining thermodynamic software simulation with full-process experimental analysis, provides new insights into the texture control of soft magnetic materials.