| Effects of Pressure on the Solidification Microstructure of Mg_(65)Cu_(25)Y_(10) Alloy |
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| 引用本文： | Jia ZHANG,Keqiang QIU,Aimin WANG,Haifeng ZHANG,Mingxiu QUAN and Zhuangqi HUShenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China. Effects of Pressure on the Solidification Microstructure of Mg_(65)Cu_(25)Y_(10) Alloy[J]. 材料科学技术学报, 2004, 20(1): 106-108 |
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| 作者姓名： | Jia ZHANG Keqiang QIU Aimin WANG Haifeng ZHANG Mingxiu QUAN and Zhuangqi HUShenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China |
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| 作者单位： | Jia ZHANG，Keqiang QIU，Aimin WANG，Haifeng ZHANG，Mingxiu QUAN and Zhuangqi HUShenyang National Laboratory for Materials Science，Institute of Metal Research，Chinese Academy of Sciences，Shenyang 110016，China |
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| 基金项目： | 国家自然科学基金，the National Development Project for Basic Scientific Research |
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| 摘 要： | The Mg65Cu25Y10 melts were quenched at a temperature of 973 K under various pressures in the range of 2-5 GPa and ambient pressure. The microstructure of the solidified specimens has been investigated by X-ray diffraction, transmission electron microscope and electron probe microanalysis. Experimental results show that the pressure has a great influence on the solidification microstructure of the Mg65Cu25Y10. At ambient pressure, the solidification products are Mg2(Cu,Y) and a very small amount of Y2O3 inclusion. As the pressure is above 2 GPa, a new Cu2(Y,Mg) phase appears, while Y2O3 is not observed at the pressure of 3, 4 and 5 GPa. When the pressure increases from 2 GPa to 5 GPa, the grain sizes of Mg2(Cu,Y) and Cu2(Y,Mg) decrease from 125, 96 nm to 80, 7 nm, respectively. The mechanisms for the effects of the pressure on the phase evolution and microstructure during solidification process of Mg65Cu25Y10 alloy have been discussed.
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Effects of Pressure on the Solidification Microstructure of Mg65Cu25Y10 Alloy |
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| Jia ZHANG,Keqiang QIU,Aimin WANG,Haifeng ZHANG,Mingxiu QUAN,Zhuangqi HU. Effects of Pressure on the Solidification Microstructure of Mg65Cu25Y10 Alloy[J]. Journal of Materials Science & Technology, 2004, 20(1): 106-108 |
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| Authors: | Jia ZHANG Keqiang QIU Aimin WANG Haifeng ZHANG Mingxiu QUAN Zhuangqi HU |
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| Affiliation: | Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
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| Abstract: | The Mg65Cu25Y10 melts were quenched at a temperature of 973 K under various pressures in the range of 2～5 GPa and ambient pressure. The microstructure of the solidified specimens has been investigated by X-ray diffraction,transmission electron microscope and electron probe microanalysis. Experimental results show that the pressure has a great influence on the solidification microstructure of the Mg65Cu25Y10. At ambient pressure, the solidification products are Mg2(Cu,Y) and a very small amount of Y2O3 inclusion. As the pressure is above 2 GPa, a new Cu2(Y,Mg) phase appears, while Y2O3 is not observed at the pressure of 3, 4 and 5 GPa. When the pressure increases from 2 GPa to 5 GPa, the grain sizes of Mg2(Cu,Y) and Cu2(Y,Mg) decrease from 125, 96 nm to 80,7 nm, respectively. The mechanisms for the effects of the pressure on the phase evolution and microstructure during solidification process of Mg65Cu25Y10 alloy have been discussed. |
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| Keywords: | Mg65Cu25Y10 alloy Solidification Glass formation alility |
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