Atomic structure in Al-doped multicomponent bulk metallic glass

The atomic structure of Zr 48Cu 45Al 7 bulk metallic glass is investigated by Monte Carlo simulation upon synchrotron radiation data. Strong bonding and dense cluster packing caused by the minor addition of Al are two key local structural features that may retard the rearrangement of atoms and clust...

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Bibliographic Details
Published in:Scripta materialia 2010-10, Vol.63 (8), p.879-882
Main Authors: Yang, Liang, Guo, Gu-Qing, Chen, Lian-Yi, Wei, Shi-Hao, Jiang, Jian-Zhong, Wang, Xiao-Dong
Format: Article
Language:English
Subjects:
Aluminum
Amorphous materials
Atomic structure
Bulk metallic glass
Clusters
Computer simulation
Extended X-ray absorption fine structure
Focusing
Metallic glasses
Monte Carlo methods
Short-range ordering
Strategy
X-ray diffraction
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Summary:The atomic structure of Zr 48Cu 45Al 7 bulk metallic glass is investigated by Monte Carlo simulation upon synchrotron radiation data. Strong bonding and dense cluster packing caused by the minor addition of Al are two key local structural features that may retard the rearrangement of atoms and clusters during quench, facilitating glass formation. Based on this work, we present a strategy to reveal the relationship between local structure and glass-forming ability by focusing on the structural features caused by doping atoms from the atomic and cluster scales.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2010.06.042