在三元Fe-B-Y合金系中,以团簇线判据设计了5个基础合金成分,即5条成分线Fe8B3-Y,Fe8B2-Y,Fe83B17-Y,Fe6B-Y和Fe9B-Y与一条团簇线Fe12Y-B的交点.在此基础上加入微量Nb和M(M=Ti,Hf, Ta,Mo,Ni和Sn)形成五元合金,用铜模铸造方法制备出直径为3 mm的合金棒.考虑到元素B和Y在合金制备过程中的损耗,对每个合金进行了成分修正.在M=Ti,Hf,Ta和Mo时,能够形成块体非晶合金的三元基础成分均接近Fe8B3-Y与Fe12Y-B两条团簇线交点成分,表明其对应的基础团簇为Archimedes八面体反棱柱Fe8B3.最佳非晶成分为(Fe69.9B24.6Y5.5)96Nb2Ti2,其Tg=944 K,Tx=997 K,Trg=0.666.当M=Ni和Sn时,均没有得到块体非晶合金.
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