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Bulk metallic glasses formed by alloying the Cu6Zr5 cluster
  • ISSN号：1005-8850
  • 期刊名称：北京科技大学学报(英文版)
  • 时间：0
  • 页码：39-42
  • 语言：中文
  • 分类：TG139.8[金属学及工艺—合金;一般工业技术—材料科学与工程;金属学及工艺—金属学]
  • 相关基金：This paper was financially supported by the National Natural Science Foundation of China (No.50401020, 50671018 and 50631010);the Provincial Science and Technology Foundation of Liaoning (No.20061067).
  • 相关项目：块体金属玻璃形成过程中的微观结构演变与玻璃形成能力
作者： Qiang, Jianbing|Dong, Chuang|Wang, Qing|Li, Yanhui|Wu, Jiang|
关键词： bulk, metallic, glasses, CLUSTER, electron, concentration, atomic, size, minor-alloying, Cu-Zr, alloys
中文摘要：

The bulk metallic glass formation in the Cu-Zr-M ternary systems by alloying of a binary basic Cu6Zr5 cluster was inves- tigated, where M stands for Sn, Mo, Ta, Nb, Ag, Al and Ti. The Cu6Zr5 cluster is a capped Archimedean antiprism that characterizes the local structure of the Cu10Zr7 crystalline phase. This cluster composition almost superposes with Cu-Zr eutectic Cu0.56Zr0.44. A se- ries of alloys along the cluster line (Cu6Zr5)1-xMx were examined for their glass forming abilities. Alloy rods with a diameter of 3 mm were prepared by copper mould suction casting method and analyzed by XRD and thermal analysis. The Cu-Zr based bulk metallic glasses were discovered with minor Nb, Sn, Mo, Ta additions (≤2at%) and Al, Ti, Ag (8at%≤concentration≤9at%). The alloying mechanism was discussed in the light of atomic size, cluster-linking structure and electron concentration factors.

同期刊论文项目
准晶和块体非晶合金形成体系中的特征变电子浓度线研究
期刊论文 33 会议论文 13
块体金属玻璃形成过程中的微观结构演变与玻璃形成能力
期刊论文 109 会议论文 5 专利 14
三元合金相的团簇线成分判据
期刊论文 39
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