The soft magnetic properties of Fe75.9Cu₁Si13B₈Nb1.5Mo0.5Dy0.1 nanocrystalline alloy were studied which is designed on the basis of the Finemet type alloys. The X-ray diffraction (XRD), transmission electron microscopy (TEM), differential scanning calorimetry (DSC), electric inductance measuring-testing instrument and MATS soft magnetic material AC/DC tester were used to study the effects of the effective permeability (μe), saturation magnetic induction (Bs), coercivity (Hc), and hysteresis losses (PS) at 100kHz and 0.2T under factors such as different annealing temperatures, different thicknesses, and whether there is a need for transverse field for annealing. The results show that the commercial amorphous alloy ribbons Fe75.9 Cu₁Si13B₈Nb1.5Mo0.5Dy0.1 have complete amorphous structure in as-cast state, and α-Fe nanocrystalline phase precipitates on the amorphous matrix after vacuum annealing. Fe75.9 Cu₁Si13B₈Nb1.5Mo0.5Dy0.1 alloy has high ΔTx value and good thermal stability, which can better control the formation of nanocrystalline structure. The transverse magnetic field annealing can greatly increase the μe of the material and reduce the Ps, which is more significant for the ribbons. The optimum annealing process of Fe75.9Cu₁Si13B₈Nb1.5Mo0.5Dy0.1 alloy is that the transverse magnetic field of 1000Gs is applied and the temperature is kept at 833k for 30min. And the best properties for Bs are 1.39T, for Hc is 4.6A/m and μe=2.5×104@1kHz, c=1.52×104@100kHz. With the high frequency and miniaturization of electronic components, this material has potential application value.

中文翻译：

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Fe75.9Cu1Si13B8Nb1.5Mo0.5Dy0.1的性能及热处理工艺研究

Fe的软磁特性75.9铜₁硅13B ₈铌1.5莫0.5镝0.1研究了在Finemet型合金的基础上设计的纳米晶合金。采用X射线衍射仪（XRD）、透射电子显微镜（TEM）、差示扫描量热仪（DSC）、电感测量测试仪和MATS软磁材料AC/DC测试仪研究了有效磁导率的影响（μe), 饱和磁感应 (乙s), 矫顽力 (HC) 和磁滞损耗 (磷小号) 在 100千赫兹和 0.2退火温度不同、厚度不同、退火是否需要横向场等因素下的T。结果表明，商用非晶合金薄带 Fe75.9铜₁硅13B ₈铌1.5莫0.5镝0.1在铸态下具有完整的非晶结构，并且α-Fe纳米晶相在真空退火后在非晶基体上析出。铁75.9铜₁硅13B ₈铌1.5莫0.5镝0.1合金具有高Δ吨X值和良好的热稳定性，可以更好地控制纳米晶结构的形成。横向磁场退火可以大大提高μe材料和减少磷s，这对色带更为重要。Fe的最佳退火工艺75.9铜₁硅13B ₈铌1.5莫0.5镝0.1合金是1000的横向磁场施加 Gs 并将温度保持在 833k 为 30分钟。和最好的属性乙s是 1.39T，对于HC是 4.6A/m 和μe=2.5×104@1千赫，C=1.52×104@100千赫。随着电子元件的高频化和小型化，这种材料具有潜在的应用价值。