| Bulk glass formation in ternary Cu-Zr-Ti system |
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| 引用本文： | Hua Men,Junying Fu,Chaoli Ma,Shujie Pang,and Tao Zhang Department of Materials Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,China. Bulk glass formation in ternary Cu-Zr-Ti system[J]. 北京科技大学学报(英文版), 2007, 0(Z1) |
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| 作者姓名： | Hua Men Junying Fu Chaoli Ma Shujie Pang and Tao Zhang Department of Materials Science and Engineering Beijing University of Aeronautics and Astronautics Beijing 100083 China |
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| 作者单位： | Hua Men，Junying Fu，Chaoli Ma，Shujie Pang，and Tao Zhang Department of Materials Science and Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100083，China |
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| 基金项目： | This work was financially supported by the National Natural Science Foundation of China (No.50225103, 50471001 and 50631010). |
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| 摘 要： | The formation of bulk metallic glasses (BMGs) in ternary Cu-Zr-Ti system was investigated by a copper mold casting method. The nature of the amorphous phase was verified by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). It was demonstrated that the BMGs could be formed in a broad composition range in this system. Cu50Zr42.5Ti7.5, Cu60Zr27.5Ti12.5, Cu60Zr30Ti10 and Cu60Zr32.5Ti7.5 alloys exhibit strong glass-forming ability (GFA), and fully glassy rods of 5 mm in diameter can be obtained. In the center region of the ternary diagram, however, the GFA of the alloys was degraded due to the presence of Laves phase. The degradation of the GFA results from easy nucleation of the Laves phase in the undercooled liquid.
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Bulk glass formation in ternary Cu-Zr-Ti system |
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| Hua Men,Junying Fu,Chaoli Ma,Shujie Pang,and Tao Zhang. Bulk glass formation in ternary Cu-Zr-Ti system[J]. Journal of University of Science and Technology Beijing, 2007, 0(Z1) |
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| Authors: | Hua Men Junying Fu Chaoli Ma Shujie Pang and Tao Zhang |
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| Affiliation: | Hua Men,Junying Fu,Chaoli Ma,Shujie Pang,and Tao Zhang Department of Materials Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,China |
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| Abstract: | The formation of bulk metallic glasses (BMGs) in ternary Cu-Zr-Ti system was investigated by a copper mold casting method. The nature of the amorphous phase was verified by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). It was demonstrated that the BMGs could be formed in a broad composition range in this system. Cu50Zr42.5Ti7.5, Cu60Zr27.5Ti12.5, Cu60Zr30Ti10 and Cu60Zr32.5Ti7.5 alloys exhibit strong glass-forming ability (GFA), and fully glassy rods of 5 mm in diameter can be obtained. In the center region of the ternary diagram, however, the GFA of the alloys was degraded due to the presence of Laves phase. The degradation of the GFA results from easy nucleation of the Laves phase in the undercooled liquid. |
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| Keywords: | bulk metallic glass glass-forming ability Laves phase eutectics |
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