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李正坤,秦鑫冬,刘丁铭,陆宏煜,张海峰,李扬德,李卫荣.Y、Gd、La和Ce对Zr(-Ti)-Cu-Ni-Al非晶形成能力和力学性能的影响[J].稀有金属材料与工程(英文),2018,47(9):2755~2760.[Li Zhengkun,Qin Xindong,Liu Dingming,Lu Hongyu,Zhang Haifeng,Li Yangde and Li Weirong.Effect of Y, Gd, La and Ce on the glass forming ability and mechanical properties of Zr(-Ti)-Cu-Ni-Al metallic glasses[J].Rare Metal Materials and Engineering,2018,47(9):2755~2760.]
Effect of Y, Gd, La and Ce on the glass forming ability and mechanical properties of Zr(-Ti)-Cu-Ni-Al metallic glasses
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Received:November 08, 2016  Revised:December 30, 2016
DOI:
Key words: metallic glass  glass forming ability  mechanical properties  Y
Foundation item:国家自然科学基金(51434008,U1435204,51531005);广东省省级科技计划项目(2015B090926001,2015B010122001);中国载人空间站工程(TGJZ800-2-RW024);江苏省创新人才计划项目
Author NameAffiliation
Li Zhengkun,Qin Xindong,Liu Dingming,Lu Hongyu,Zhang Haifeng,Li Yangde and Li Weirong  
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Abstract:
      To control the O content and further improve the glass forming ability and mechanical properties of Zr(-Ti)-Cu-Ni-Al metallic glasses, Y, Gd, La and Ce are added into the alloys based on the mechanism of strong interaction between O and rare earth elements. Metallic glasses are prepared by the copper mold casting method. The glass forming ability and microstructure of the alloys are studied by Differential Scanning Calorimetry (DSC), X-ray Diffraction (XRD) and Transmission Electron Microscopy (TEM), and the mechanical properties and corresponding fracture modes are investigated by quasi-static compressive tests and Scanning Electron Microscope (SEM). The results show that the addition of Y improves the glass forming ability greatly. Bulk metallic glasses with the diameter over 10 mm can be prepared under relatively low vacuum. The compressive strength is up to 1900 MPa.