作　　者： ; ; ; ;

机构地区： 广东工业大学材料与能源学院

出　　处： 《热加工工艺》 2010年第22期9-11,共3页

摘　　要： 采用水冷铜模吸铸法制备了一系列直径为2mm的(Fe72Dy6B22)1-xNbx(x=0.02,0.03,0.04,0.05)和(Fe72Dy6B22)1-xTix(x=0.01,0.02,0.03,0.04)非晶合金棒,并测试了块体非晶合金的结构、热稳定性和软磁性能。结果表明:一定量的Nb、Ti的添加有助于改善合金的热稳定性和非晶形成能力。其中(Fe72Dy6B22)0.96Nb0.04的过冷液相区宽度ΔTx高达58℃,饱和磁感应强度为75.2 emu/g,该合金同时具有较大的热稳定性、较强的玻璃形成能力和较好的软磁性能。 The bulk glassy alloys（Fe72Dy6B22）1-xNbx（x=0.02,0.03,0.04,0.05） and（Fe72Dy6B22）1-xTix（x=0.01,0.02,0.03,0.04） with the diameter of 2 mm were obtained by copper-mold vacuum suction casting.The structure of bulk amorphous alloys,thermal stability and soft magnetic properties were detected.The results show that the thermal stability and glass forming ability can be improved because of the addition of Nb,Ti element,and the amorphous alloy（Fe72Dy6B22）0.96Nb0.04 exhibites wide supercooled liquid region of 58 ℃,high saturation magnetization of 75.2 emu/g.The amorphous alloy has the higher thermal stability,the stronger glass forming ability and the better soft magnetic properties.

关 键 词： 铁基块体非晶合金 玻璃形成能力 软磁性能

领　　域： [金属学及工艺] [一般工业技术] [金属学及工艺]