Si/B比对FeSiBCu合金非晶形成能力与其软磁性能的影响

Effects of Ratio Between Si and B on Glass Forming Ability and Soft Magnetic Properties of FeSiBCu Alloy

利用单铜辊甩带法制备Fe83SixB16-xCu1(x=4、5、7、9、10、11、12、14)合金带材,采用X线衍射仪(XRD)、差示扫描量热仪(DSC)和振动样品磁强计(VSM)对FeSiBCu系列合金的相结构、热稳定性和软磁性能进行表征,探讨了Si、B元素之间的比例对FeSiBCu系列合金带材的非晶形成能力和软磁性能的影响。结果表明,在整个FeSiBCu系列合金带材中,当Si、B元素之间的比例Si/B=2.2时,其X射线衍射图谱中显示的漫头峰最宽,非晶形成能力最好;在DSC测试中该比例的晶化峰温度最低;通过VSM所测出的磁滞回线中得到其饱和磁化强度最大,达168.9emu/g。

Fe83SixB16-sGu1（x=4, 5, 7, 9, 10, 11, 12, 14） alloy ribbons were prepared by single roller melt-spinning method. The effect of the ratio between Si and B on glass forming ability and soil-magnetic properties of FeSiBCu alloys were investigated by X-ray diffraction （XRD）, differential scanning calorimeter （DSC） and vibrating sample magnetometer（VSM）. The results show that the glass foming ability and the crystallization onset temperature changes with the ratio between Si and B. The effects on the glass forming ability and soft-magnetic properties of FeSiBCu alloy with the ratio between Si and B change were discussed. The results show that in the whole FeSiBCu alloy, while the ratio between Si and B is 2.2, the X-ray diffiaction pattern show that it has the widest half peak Width and the best glass forming ability; in the DSC test, the crystallization peak temperature in this ratio has a minimum value. The hysteresis loop of the saturation magnetization intensity can be measured, which has the largest value about 168.9 emu/g.