以具有最佳非晶形成能力的新型Fe-B-Si-Hf四元块体非晶合金团簇式成分[Si-B_2Fe_(7.7)Hf_(0.3)]Fe(Fe_(72.5)B_(16.7)Si_(8.3)Hf_(2.5))为基础,通过添加Fe原子获得了[Si-B_2Fe_(7.7)Hf_(0.3)]Fe+Fex(x=0、1.5、2、2.5和3,原子个数)系列高Fe含量的Fe-B-Si-Hf四元合金成分。液态急冷、热分析和磁性测量结果表明,随着Fe原子数量的增加,非晶合金的形成能力逐渐降低,形成棒状块体非晶样品的临界尺寸由x=0时的2.5 mm降低到x=2时的1 mm。非晶样品的玻璃态转变温度、晶化温度和Curie温度随Fe原子数量的增加也整体上表现为降低的趋势。该系列非晶样品软磁性能优异,其中[Si-B_2Fe_(7.7)Hf_(0.3)]Fe+Fe_2(Fe_(76.4)B_(14.3)Si_(7.1)Hf_(2.2))块体非晶合金的饱和磁化强度和矫顽力分别为1.58 T和2.8 A/m。为建立高Fe含量Fe-B-Si-Hf非晶合金的结构-性能关联,构建了{[Si-B_2Fe_(7.7)Hf_(0.3)]+[Fe-Fe_(14)]_(x/15)}Fe非晶合金的“双团簇”微观结构模型。结果表明,源于a-Fe的[Fe-Fe_(14)]团簇的数量在Fe-B-Si-Hf四元非晶合金的性能变化中起决定作用。 The new amorphous Fe-B-Si-Hf amorphous alloy with the best amorphous forming ability [Si-B_2Fe_ (7.7) Hf_ (0.3)] Fe (Fe_ (72.5) B_ (16.7) Si_ (8.3) Hf_ (2.5)), [Si-B_2Fe_ (7.7) Hf_ (0.3)] Fe + Fex (x = 0,1.5,2,2.5 and 3, the number of atoms) Series of high Fe content of Fe-B-Si-Hf quaternary alloy composition. The results of liquid quenching, thermal analysis and magnetic measurements show that the formation ability of amorphous alloy gradually decreases with the increase of the number of Fe atoms, and the critical size of amorphous samples forming rod-like bulk decreases from 2.5 mm at x = 0 to x = 2 mm when the 1 mm. The glass transition temperature, crystallization temperature and Curie temperature of amorphous samples also show a decreasing trend with the increase of Fe atomic number. The series of amorphous samples have excellent soft magnetic properties. Among them, [Si-B 2 Fe 7 7.7 Hf 0.3 Fe 2 Fe 6 76.4 B 14.3 Si 7.1 7.1 Hf 2.2) The saturation magnetization and coercivity are 1.58 T and 2.8 A / m, respectively. In order to establish the structure-property relationship of Fe-B-Si-Hf amorphous alloy with high Fe content, {[Si-B_2Fe_ (7.7) Hf_ (0.3)] + [Fe_Fe_ (14)] _ )} “Double cluster” microstructure model of Fe amorphous alloy. The results show that the amount of [Fe-Fe_ (14)] clusters derived from a-Fe plays a decisive role in the properties of Fe-B-Si-Hf quaternary amorphous alloys.