中文摘要：

高温度的交流磁性为(Fe0.5Co0.5 ) 73.5Cu1Nb3 Si13.5B9 合金在各种各样的温度退火了用一个阻抗分析器被调查了。退火的温度 Ta 在合金的高温度的交流磁性上有明显的效果。Hopkinson 山峰仅仅在非结晶的合金出现什么时候 Ta ≤ 703K。作为在 733K 上面的 Ta 增加，复杂起始的渗透β i 的真实部分“逐渐地下降，β i ”在高温度范围与温度更慢慢地减少。高温度(大约 750K ) 为合金的交流起始的渗透在 Ta=763K 退火了被发现了维持 950 的稳定的高价值直到 1 × 105Hz 的频率。为在 Fe73.5Cu1Nb3Si13.5B9 合金的 Fe 的公司的部分替换导致增加在无定形相的居里温度的 110K 附近，比包含 Ge Finemet 高得多合金。

英文摘要：

High-temperature AC magnetic properties for （Fe0.5Co0.5）73.5Cu1Nb3Si13.5B9 alloy annealed at various temperatures have been investigated using an impedance analyzer. Annealing temperature Ta has obvious effects on high-temperature AC magnetic properties of the alloy. The Hopkinson peak appears only in the amorphous alloy when Ta≤703K. As Ta increases above 733K, the real part of the complex initial permeability μi′descends gradually, μi′decreases more slowly with temperature in the high temperature range. The high-temperature （about 750K） AC initial permeability for the alloy annealed at Ta= 763K has been found to maintain a stable high value of 950 up to a frequency of- 1 × 10^5Hz. Partial substitution of Co for Fe in the F73.5Cu1Nb3Si13.5B9 alloy leads to an increase of around 110K of the Curie temperature of the amorphous phase, much higher than Ge-containing Finemet alloy.