| Microstructure Refinement of Sn-Sb Peritectic Alloy under High-Intensity Ultrasound Treatment |
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| 作者姓名： | 戚飞鹏 张海波 高守雷 翟启杰 |
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| 作者单位： | SchoolofMaterialsScienceandEngineering,ShanghaiUniversity,Shanghai200072,P.R.China |
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| 基金项目： | theScienceFoundationofShanghaiMunicipalCommissionofScienceandTechnology(GrantNo.01JC14001) |
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| 摘 要： | In this paper the solidification behavior of Sn-Sb peritectic alloy and the mechanism of grain refinement in solidification process under high-intensity ultrasonic field are investigated. Three different powers of high-intensity ultrasound are introduced into molten Sn-Sb peritectic alloy to study the refining effectiveness. The results show that the application of high-intensity ultrasound during solidification process of Sn-Sb peritectic alloy can refine a phase and β phase and eliminate gravity segregation of the alloy. As acoustic intensity is increased from 400 W to 800 W, not only the homogenous fine structure can be obtained, but also the cubic β phase crystals tend to be spherical. Microstructure of the sample treated by 600 W high-intensity ultrasound demonstrates the best refining effect.
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| 关 键 词： | 功率超声细化 Sn-Sb包晶合金 凝固结构 精制 锡锑合金 |
| 收稿时间： | 9 October 2003 |
Microstructure refinement of Sn-Sb peritectic alloy under high-intensity ultrasound treatment |
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| Qi?Fei-peng,Zhang?Hai-bo,Gao?Shou-lei,Zhai?Qi-jie.Microstructure Refinement of Sn-Sb Peritectic Alloy under High-Intensity Ultrasound Treatment[J].Journal of Shanghai University(English Edition),2005,9(1):74-77. |
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| Authors: | Qi Fei-peng Zhang Hai-bo Gao Shou-lei Zhai Qi-jie |
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| Institution: | (1) School of Materials Science and Engineering, Shanghai University, 200072 Shanghai, P.R. China |
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| Abstract: | In this paper the solidification behavior of Sn-Sb peritectic alloy and the mechanism of grain refinement in solidification
process under high-intensity ultrasonic field are investigated. Three different powers of high-intensity ultrasound are introduced
into molten Sn-Sb peritectic alloy to study the refining effectiveness. The results show that the application of high-intensity
ultrasound during solidification process of Sn-Sb peritectic alloy can refine α phase and β phase and eliminate gravity segregation
of the alloy. As acoustic intensity is increased from 400 W to 800 W, not only the homogenous fine structure can be obtained,
but also the cubic β phase crystals tend to be spherical. Microstructure of the sample treated by 600 W high-intensity ultrasound
demonstrates the best refining effect.
Project supported by the Science Foundation of Shanghai Municipal Commission of Science and Technology (Grant No. 01JC14001) |
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| Keywords: | ultrasonic field Sn-Sb peritectic alloy solidification structure refinement |
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