Co、Ni添加对FeBYNb块体非晶合金玻璃形成能力和磁性能的影响
Effects of Co and Ni Addition on GFA and Magnetic Property of FeBYNb Bulk Glass Alloy
张 琦, 陈先朝, 杨元政, 陶平均
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作者单位：广东工业大学 材料与能源学院, 广东 广州 510006
中文关键字：铁基块体非晶合金； 玻璃形成能力； 软磁性能
英文关键字：Fe-based bulk amorphous alloy; glass forming ability; soft magnetic property
中文摘要：采用铜模吸铸工艺成功制备了一系列的(Fe1-x-yCoyNix)68.4B23Y4.6Nb4块体非晶合金，并采用X射线衍射仪(XRD)、 差热分析仪(DTA)、 振动样品磁强计(VSM) 测试块体非晶合金的结构 、 热稳定性和磁性能。 探讨了不同Co、Ni含量对(Fe1-x-yCoyNix)68.4B23Y4.6Nb4系合金玻璃形成能力(GFA)及磁性能的影响。结果表明：合金(Fe0.5Co0.5)68.4B23Y4.6Nb4、(FexNi1-x)68.4B23Y4.6Nb4(x=0.05、0.1、0.15、0.2)、(Fe1-x-yCoyNix)68.4B23Y4.6Nb4(x=0.15、0.3、0.45，y=0.1、0.2)均可制得直径为3 mm的非晶棒。该系列合金均具有良好的软磁性能，但随着Co、Ni含量的增加，其饱和磁化强度均下降。
英文摘要：The bulk glassy alloys (Fe1-x-yCoxNiy)68.4B23Y4.6Nb4 [(x=0.5, y=0)，(x=0.0, y=0.05, 0.1, 0.15, 0.2),(x=0.15, 0.3, 0.45, y=0.1, 0.2)] with ?准3 mm were prepared by means of copper-mold vacuum suction casting. The structure, thermal stability and magnetic properties were detected by X-ray diffraction(XRD), differential thermal analysis (DTA) and vibrating sample magnetometer(VSM). The effects of Co, Ni content on glass forming ability and magnetic property of the bulk glassy alloys were discussed. The results show that (Fe0.5Co0.5)68.4B23Y4.6Nb4, (FexNi1-x)68.4B23Y4.6Nb4(x=0.05, 0.1, 0.15, 0.2) and (Fe1-x-yCoxNiy)68.4B23Y4.6Nb4 (x=0.15, 0.3, 0.45, y=0.1, 0.2) can all be used to prepare amorphous bar with ?准3 mm. The bulk glassy alloys have good soft magnetic properties. With the increase of the content of Co and Ni, the saturation magnetization (Ms) of the alloys decreases.