CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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An Attempt to Prepare Metallic Glasses from Quasicrystals |
Zi-Jing Li, Lin-Ran Zhao, Yu-Ting Wang, Ze-Ming Chen, Wen-Kang Tu, Ya-Qi Zhang, Hong Bo, Ying-Dan Liu, Li-Min Wang** |
State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004
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Cite this article: |
Zi-Jing Li, Lin-Ran Zhao, Yu-Ting Wang et al 2016 Chin. Phys. Lett. 33 046401 |
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Abstract Icosahedrons in supercooled liquids and glasses are considered to be of significance for the glass formation in alloy systems. Starting from the similarity of the local structure of quasicrystals to the icosahedrons in metallic glasses, a scheme is put forward to prepare metallic glasses based on a well-known quasicrystal Zr$_{40}$Ti$_{40}$Ni$_{20}$. A series of (Zr$_{40}$Ti$_{40}$Ni$_{20}$)$_{100-x}$Co$_{x}$ metallic glasses are fabricated, and the optimized glass forming composition is determined at (Zr$_{40}$Ti$_{40}$Ni$_{20}$)$_{92}$Co$_{8}$. The results show that the glass-forming ability of the alloys is closely related to the quasicrystalline phases. The mechanism of the enhanced glass-forming ability is discussed.
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Received: 02 January 2016
Published: 29 April 2016
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PACS: |
64.70.pe
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(Metallic glasses)
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61.44.Br
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(Quasicrystals)
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82.30.Nr
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(Association, addition, insertion, cluster formation)
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Abstract
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