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Formation and mechanical properties of Zr-Nb-Cu-Ni-Al-Lu bulk glassy alloys with superior glass-forming ability
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  • 作者:Xiangjin Zhao 赵相金 ; Wei Liu ; Li Liu…
  • 关键词:metallic glass ; zirconium ; based alloy ; glass ; forming ability ; mechanical properties
  • 刊名:Journal of Wuhan University of Technology--Materials Science Edition
  • 出版年:2016
  • 出版时间:February 2016
  • 年:2016
  • 卷:31
  • 期:1
  • 页码:186-190
  • 全文大小:1,064 KB
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  • 作者单位:Xiangjin Zhao 赵相金 (1)
    Wei Liu (1)
    Li Liu (1)
    Tao Zhang (2)
    Shujie Pang (2)
    Chaoli Ma (2)

    1. School of Environment and Materials Engineering, Yantai University, Yantai, 264005, China
    2. Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100083, China
  • 刊物类别:Chemistry and Materials Science
  • 刊物主题:Chemistry
    Materials Science
    Chinese Library of Science
  • 出版者:Wuhan University, co-published with Springer
  • ISSN:1993-0437
文摘
Glass-forming ability (GFA) and mechanical properties of (Zr0.58Nb0.03Cu0.16Ni0.13Al0.10)100-x Lu x (x = 0-3 at%) alloys have been investigated. The GFA of Zr58Nb3Cu16Ni13Al10 alloy is dramatically enhanced by adding Lu. The (Zr0.58Nb0.03Cu0.16Ni0.13Al0.10)98Lu2 alloy possesses the highest GFA in the studied Zr-Nb-Cu-Ni-Al-Lu alloys, with its critical diameter for glass formation reaching 20 mm by copper-mould casting method, while that of the Lu-free Zr58Nb3Cu16Ni13Al10 alloy is 7 mm. The critical diameters of (Zr0.58Nb0.03Cu0.16Ni0.13Al0.10)100-xLux (x = 1 at% and 3 at%) alloys are 15 mm and 12 mm, respectively. The Lu addition to Zr58Nb3Cu16Ni13Al10 alloy induces the change of initial crystallization phases from face-centred-cubic Zr2Ni and tetragonal Zr2Ni phases for the Lu-free Zr58Nb3Cu16Ni13Al10 alloy to an icosahedral quasi-crystalline phase for the Lu-doped alloys, which may be the origin for the enhanced GFA of the Lu-doped alloys. The compressive fracture strength and plastic strain of the bulk glassy (Zr0.58Nb0.03Cu0.16Ni0.13Al0.10)98Lu2 alloy are 1 610 MPa and 1.5%, respectively. Key words metallic glass zirconium-based alloy glass-forming ability mechanical properties

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