| Zr52.5Al10Ni10Cu15Be12.5 大块金属玻璃的高温宏观硬度 |
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| 引用本文： | 李钧,田瑞,肖学山.Zr52.5Al10Ni10Cu15Be12.5 大块金属玻璃的高温宏观硬度[J].上海大学学报(英文版),2007,11(5):506-509. |
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| 作者姓名： | 李钧 田瑞 肖学山 |
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| 作者单位： | School of Materials Science and Engineering, Shanghai University, Shanghai 200072, P. R. China |
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| 摘 要： | The hot hardness behavior of Zr52.5Al10Ni10Cu15Be12.5 bulk metallic glass is studied from ambient temperature to the temperature over Tx （the onset crystallization temperature） using a hot macro-hardness tester and scanning electron microscopy （SEM）. The results show that the hot hardness behavior of Zr52.5Al10Ni10Cu15Be12.5 bulk metallic glass can be classified into 4 zones： the glassy zone in which the hardness almost linearly decreases with the increase of temperature, the viscoelastic zone in which the hardness is nearly unchanged, the viscous flow zone in which the hardness quickly tends towards near zero with temperature, and the crystallization zone in which the hardness sharply increases. The high temperature deformation behavior and the easy processable deformation region for bulk metallic glasses are also discussed on the basis of the hot marco-hardness.
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| 关 键 词： | Zr52．5Al10Ni10Cu15Be12．5玻璃 大块金属玻璃 高温宏观硬度 材料科学 |
| 收稿时间： | 2006-03-03 |
| 修稿时间： | 2006-03-03 |
Hot macro-hardness of Zr52.5Al10Ni10Cu15Be12.5 bulk metallic glass |
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| LI Jun,TIAN Rui,XIAO Xue-shan.Hot macro-hardness of Zr52.5Al10Ni10Cu15Be12.5 bulk metallic glass[J].Journal of Shanghai University(English Edition),2007,11(5):506-509. |
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| Authors: | LI Jun TIAN Rui XIAO Xue-shan |
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| Institution: | School of Materials Science and Engineering, Shanghai University, Shanghai 200072, P. R. China |
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| Abstract: | The hot hardness behavior of Zr52.5Al10Ni10Cu15Be12.5 bulk metallic glass is studied from ambient temperature to the temperature over Tx (the onset crystallization temperature) using a hot macro-hardness tester and scanning electron microscopy (SEM). The results show that the hot hardness behavior of Zr52.5Al10Ni10Cu15Be12.5 bulk metallic glass can be classified into 4 zones the glassy zone in which the hardness almost linearly decreases with the increase of temperature, the viscoelastic zone in which the hardness is nearly unchanged, the viscous flow zone in which the hardness quickly tends towards near zero with temperature, and the crystallization zone in which the hardness sharply increases. The high temperature deformation behavior and the easy processable deformation region for bulk metallic glasses are also discussed on the basis of the hot marco-hardness. |
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| Keywords: | hot hardness deformation bulk metallic glass |
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