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采用单辊快淬法制备Fe_(40)Co_(40)Zr_((10-x))Mo_xB_9Cu_1(x=0,2,4)系非晶合金,并对3种合金进行不同温度热处理。利用X射线衍射仪(XRD)、透射电镜(TEM)、差热分析仪(DTA)和振动样品磁强计(VSM)对合金的微观结构、热性能和磁性能进行测试分析。结果表明:Fe_(40)Co_(40)Zr_((10-x))Mo_xB_9Cu_1(x=0,2,4)3种合金第1个晶化峰的激活能随Mo含量的增加而减小,Mo的添加不利于合金的热稳定性。Mo含量的增加抑制了ZrCo_3B_2等化合物的析出,细化了结晶相的晶粒尺寸。Fe_(40)Co_(40)Zr_((10-x))Mo_xB_9Cu_1(x=0,2,4)3种非晶合金的矫顽力Hc均随退火温度的升高而逐渐增大。Mo的添加明显降低了合金的矫顽力。
The Fe_ (40) Co_ (40) Zr_ ((10-x)) Mo_xB_9Cu_1 (x = 0,2,4) -based amorphous alloys were prepared by a single roll rapid quenching method and the three alloys were heat treated at different temperatures. The microstructure, thermal properties and magnetic properties of the alloy were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), differential thermal analyzer (DTA) and vibrating sample magnetometer (VSM) The results show that the activation energy of the first crystallization peak of the Fe_ (40) Co_ (40) Zr_ ((10-x)) Mo_xB_9Cu_1 (x = 0,2,4) alloys decreases with the increase of Mo content, The addition of Mo is detrimental to the thermal stability of the alloy. The increase of Mo content inhibited the precipitation of ZrCo 3 B 2 and other compounds, and refined the grain size of the crystalline phase. The coercivity Hc of Fe_ (40) Co_ (40) Zr_ ((10-x)) Mo_xB_9Cu_1 (x = 0,2,4) amorphous alloys gradually increased with the increase of annealing temperature. The addition of Mo significantly reduces the coercivity of the alloy.