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Co_(66)Fe_4Mo_2Si_(16)非晶合金在等温退火和等时退火过程中起始磁导率μi随退火时间的延长而增大，在t=45min时达到最大值，然后随着退火时间的延长从快速下降，电子衍射图表明合金此时仍保持非晶结构；合金的饱和磁致伸缩系数λs随退火时间的延长由负值逐渐变为正值，当t=45min时，λs≈0，合金在等温退火过程中起始磁导率的峰值主要来源于零磁致伸缩系数．当等时退火温度为480℃时，合金中开始有少量α－Fe固溶体析出，其磁性能变差．随着退火温度的升高桥出相的体积分数增加，其磁性能急剧下降．
The initial permeability μi of Co_ (66) Fe_4Mo_2Si_ (16) amorphous alloy during isothermal annealing and isochronal annealing increased with annealing time and reached the maximum value at t = 45min, and then with the annealing time Electron diffraction pattern showed that the alloy remained amorphous structure at this time. The saturation magnetostriction coefficient λs of the alloy gradually changed from negative value to negative value with the increase of annealing time. When t = 45min, λs≈0, The peak value of the initial permeability of the alloy during the isothermal annealing mainly comes from the zero magnetostriction coefficient. When the isothermal annealing temperature is 480 ℃, a small amount of α-Fe solid solution is precipitated in the alloy and its magnetic properties deteriorate. As the annealing temperature increases, the volume fraction of the bridge phase increases and its magnetic properties decrease sharply.