利用铜模吸铸法制备(Fe0.5Co0.5)71-xNbxZr3Nd4B22(x=0～10)系块体合金,研究合金元素Nb的添加对该体系合金非晶形成能力(GFA)和磁性能的影响.结果表明,适当Nb的添加能有效提高合金的非晶形成能力.当Nb含量为5at%时,可获得具有完全非晶结构的块体非晶合金,该合金呈现典型的软磁性能,饱和磁化强度(Ms)为79 Am2/kg;合金的晶化温度(Tx)为957 K,晶化激活能E为538.30 kJ/mol.
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