【摘要】 对非晶合金Fe52Co34Hf7B6Cu1试样进行了中频磁脉冲处理,处理过程中,磁脉冲场强、作用时间保持恒定为1.99×104A/m、10min,脉冲频率分别为500,1 000,1 500和2 000 Hz;用穆斯堡尔谱(MS)、X射线衍射(XRD)和透射电镜(TEM)等技术观察了该非晶合金磁脉冲处理后的微结构变化,并以振动样品磁强计(VSM)测量了试样在磁脉冲处理后的软磁性能。结果表明,对应1 500 Hz、1.99×104A/m、10 min的中频磁脉冲处理,相对优化了合金的软磁性能。更多还原

【Abstract】 In this paper,the amorphous specimens Fe52Co34Hf7B6Cu1 were treated by medium-frequency magnetic pulsing. The treatment conditions were as follows : the field intensity and acting time were constant( 1. 99×104A /m,10min),the pulsing frequency were 500,1 500 and 2 000 Hz respectively. The microstructural change of specimens after magnetic-pulsing were observed by MS,XRD and TEM technique. The soft magnetic properties of specimens treated by magnetic-pulsing were tested by VSM. The results show that the medium-frequency magnetic pulsing( 1 500 Hz,1. 99×104A /m,10 min) can relatively improve the soft magnetic properties of Fe52Co34Hf7B6Cu1 amorphous alloy.更多还原