Developing aluminum-based bulk metallic glasses
Developing aluminum-based bulk metallic glasses
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DOI：
10.1080/14786435.2010.484401
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发表时间：
2010-06
影响因子：
1.6
通讯作者：
B.J. Yang;J. Yao;Y. Chao;J.Q. Wang;E. Ma
中科院分区：
文献类型：
--
作者：
B.J. Yang;J. Yao;Y. Chao;J.Q. Wang;E. Ma
本文详细介绍了一个系统的调查形成的铝基大块金属玻璃，扩大了早期的简要报告[Scripta材料。61（2009）p.423]。我们讨论了一种方法来设计和预测的最佳玻璃形成组成的Al-TM-RE系统的基础上，原子簇堆积模型的内部结构的玻璃。讨论了四元和五元系统中添加元素对玻璃形成能力和热稳定性的影响。三个新的组合物，Al 86Ni6Y4.5Co2La1.5，Al 86 Ni 7 Y 5Co 1 La 1和Al 86Ni7Y4.5Co1La1.5，能够形成直径为1 mm的完全玻璃态棒;它们的玻璃化转变和其他热性能的系统特征。
This paper details a systematic investigation of the formation of Al-based bulk metallic glasses, expanding on an earlier brief report [Scripta Mater. 61 (2009) p.423]. We discuss an approach for designing and predicting the best glass-forming composition in the Al–TM–RE systems, based on the atomic cluster packing model for the internal structure of the glass. The effects of additional elements in quaternary and quinary systems on the glass-forming ability and thermal stability of the glasses are also discussed. Three new compositions, Al86Ni6Y4.5Co2La1.5, Al86Ni7Y5Co1La1 and Al86Ni7Y4.5Co1La1.5, are capable of forming fully glassy rods of 1 mm in diameter; their glass transition and other thermal properties are systematically characterized.