中文摘要：

研究了退火温度对Fe15.38Co61.52Cu0.6Nb2.5Si11B9纳米晶软磁合金交流磁性的影响,并且分析了获得较好软磁性能的可能原因.合金的电阻率随着退火温度的增加逐渐降低.μ＇f0值与饱和磁化强度Ms之间没有明显的正比关系,合金的旋磁比γ随退火温度的升高应呈不规则的变化趋势.当退火温度Ta=873K时,Fe15.38Co61.52Cu0.6Nb2.5Si11B9纳米晶软磁合金具有最大的高频品质因数和弛豫频率,Q（1MHz）=23.1,f0=25.02MHz.

英文摘要：

In this paper, the influence of annealing temperature on AC magnetic property of Fe15.38Co61.52Cu0.6Nb2.5Si11B9 nanocrystalline alloy is investigated, and the possible reasons for better high-frequency soft magnetic properties are analyzed. The resistivity decreases as annealing temperature increases. The value of μ′f0 is not in direct proportion to saturation magnetization Ms because of irregular variation of the gyromagnetic ratio with annealing temperature. At annealing temperature Ta=873 K, the alloy has the largest quality factor and relaxation frequency, i.e., Q（1 MHz）=23.1 and f0=25.02 MHz.