The structure and soft magnetic properties of nanocrystalline (Fe_0.9Co_0.1)_72.7Al_0.8Si_13.5Cu₁Nb₃B₈V₁ alloy annealed at 510−690 °C were investigated by XRD patterns and initial permeability. It was observed that annealing within the ranges of 510−630 °C, only soft magnetic crystalline phase precipitated from the amorphous matrix. With the increase of annealing temperature, the grain size (D) and volume fraction of the crystalline phase (V_cry) both gradually increase from 11.9 nm to 13.7 nm and from 58 % to 89 % respectively. In the meanwhile, the thickness of the amorphous layer (Λ) gradually decreases from 2.37 nm to 0.54 nm. The change of initial permeability with temperature (μ_i -T curves) showed that the μ_i declines with increasing temperature. However, the rate of descent is different and the higher annealing temperature (T_a) corresponds to the slower attenuation of μ_i. The high-temperature μ_i gradually improves with annealing temperature (T_a) increasing up to 630 °C, and the higher μ_i of 1500 can be held up to 600 °C. However, the high-temperature μ_i dramatically deteriorates after annealing at 690 °C due to the precipitating hard magnetic phase from the residual amorphous matrix.

通过X射线衍射图谱和初始磁导率研究了在510-690°C退火的纳米晶（Fe _0.9 Co _0.1）_72.7 Al _0.8 Si _13.5 Cu ₁ Nb ₃ B ₈ V ₁合金的结构和软磁性能。观察到在510-630°C的范围内退火，只有软磁晶相从非晶态基质中析出。随着退火温度的升高，晶粒尺寸（D）和晶相的体积分数（V _cry）分别从11.9 nm逐渐增加到13.7 nm和从58％逐渐增加到89％。同时，非晶层的厚度（Λ）从2.37nm逐渐减小至0.54nm。随温度的初始磁导率（变化μ_我-T曲线）表明，μ_我随着温度的增加而下降。然而，下降率是不同的，并且所述较高的退火温度（Ť_一个）对应于较慢的衰减μ_我。高温μ_我随退火温度（逐渐提高Ť_一）提高到630℃，具有较高的μ1500的_i可以保持在600°C。然而，高温μ_我在690℃下退火后的显着恶化，由于从剩余的无定形基质中的沉淀硬磁性相。