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中文摘要：
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,Re8R2-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3mm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．
英文摘要：
The glass formation composions signed using a cluster line approach. Cluster was for Fe-B-Y-based multicomponent alloys were deanalyzed and five basic compositions were selected from the intersects of cluster lines of FesB3-Y, FesB2-Y, Fes3B17-Y, Fe6B-Y and Fe9B-Y with cluster line Fe12Y-B in the Fe-B-Y phase diagram. Further minor alloying by additions of 2% Nb and 2% M （M=Ti, Hf, Ta, Mo, Ni and Sn） was designed and alloy rods were synthesized with a diameter of 3 mm by suction-casting in copper mold. Considering mass losses of B and Y during arc melting, the ingots were all weighted after each melting and the final compositions were revised accordingly. When M=Ti, Hf, Ta and Mo, the quinary alloys formed BMGs at compositions close to the FesB3-Y cluster line. This signifies that the close-packed Archimedes octahedral antiprism FesB3 is the basic atomic cluster that favors glass formation. The best glass-forming composition is （Fe69.gB24.6Ys.5）96Nb2Ti2 with Tg=944 K, Tx=997 K, Trg=0.666. When M=Ni and Sn, no glass formation was observed.
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