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金属学报  2007, Vol. 43 Issue (8): 797-802     
  论文 本期目录 | 过刊浏览 |
基于团簇线的Fe-B-Y基五元块体非晶合金
陈伟荣;王清;程旭;张庆瑜;董闯
大连理工大学;大连大学
(Fe-B-Y)-based quinary bulk metallic glasses designed using cluster line criterion
CHEN Wei-Rong;;;Qingyu Zhang;
大连理工大学;大连大学
引用本文:

陈伟荣; 王清; 程旭; 张庆瑜; 董闯 . 基于团簇线的Fe-B-Y基五元块体非晶合金[J]. 金属学报, 2007, 43(8): 797-802 .
, , , , . (Fe-B-Y)-based quinary bulk metallic glasses designed using cluster line criterion[J]. Acta Metall Sin, 2007, 43(8): 797-802 .

全文: PDF(548 KB)  
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, 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.
关键词 团簇线铁基块体非晶合金成分设计    
Abstract:This work investigates the glass formation of Fe-B-Y-based multicomponent alloys designed using a cluster line approach. Cluster lines Fe8B3-Y, Fe8B2-Y, Fe83B17-Y, Fe6B-Y and Fe9B-Y intersect with cluster line Fe12Y-B at five compositions in the Fe-B-Y phase diagram that are taken as basic compositions. Further minor alloying by additions of 2 at.% Nb and 2 at.% M (M=Ti, Hf, Ta, Mo, Ni, and Sn) was designed and alloy rods were synthesized with a diameter of 3mm by suction-casting in copper mold. A. Considering mass loss 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 form BMGs at compositions close to the Fe8B3-Y cluster line. This signifies that the close-packed Archimedes octahedral antiprism Fe8B3 is the basic atomic cluster that favors glass formation. The best glass-forming composition is (Fe69.9B24.6Y5.5)96Nb2Ti2 with Tg=944K, Tx=997K, Trg=0.666. When M=Ni and Sn, no glass formation was observed.
Key wordscluster line    Fe-based bulk metallic glass    composition design
收稿日期: 2006-12-08     
ZTFLH:  TG139.8  
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