| 脉冲电场对Al-5wt%Cu合金熔体的孕育形核作用 |
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| 引用本文： | 齐锦刚,王建中,王冰,张震斌,何力佳.脉冲电场对Al-5wt%Cu合金熔体的孕育形核作用[J].金属热处理,2007,32(10):59-61. |
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| 作者姓名： | 齐锦刚 王建中 王冰 张震斌 何力佳 |
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| 作者单位： | 1. 辽宁工业大学,材料与化学工程学院,辽宁,锦州,121001
2. 辽宁工业大学,材料与化学工程学院,辽宁,锦州,121001;北京科技大学,冶金与生态工程学院,北京,100083 |
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| 摘 要： | 对Al-5wt%Cu合金熔体进行了电脉冲处理,采用热分析方法研究了脉冲电场对该合金凝固冷却曲线的影响.结果表明,电脉冲可显著细化Al-5wt%Cu合金的凝固组织,进而改善其热裂倾向.凝固冷却曲线和温变速率曲线揭示了脉冲电场对合金熔体的孕育形核作用.
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| 关 键 词： | Al-Cu合金 脉冲电场 熔体 孕育形核 冷却曲线 脉冲电场 合金熔体 核作用 Alloy Molten Nucleation Electric Field Pulse 速率曲线 温变 凝固组织 热裂倾向 改善 电脉冲 结果 影响 冷却曲线 合金凝固 研究 方法 |
| 文章编号： | 0254-6051（2007）10-0059-03 |
| 修稿时间： | 2007-04-12 |
Effects of Pulse Electric Field on Incubated Nucleation of the Molten Al-5wt%Cu Alloy |
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| QI Jin-gang,WANG Jian-zhong,WANG Bing,ZHANG Zhen-bin,HE Li-jia.Effects of Pulse Electric Field on Incubated Nucleation of the Molten Al-5wt%Cu Alloy[J].Heat Treatment of Metals,2007,32(10):59-61. |
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| Authors: | QI Jin-gang WANG Jian-zhong WANG Bing ZHANG Zhen-bin HE Li-jia |
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| Affiliation: | 1.Department of Materials and Chemical Engineering, Liaoning University of Technology,Jinzhou Liaoning 121001, China;2. School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | The molten Al-Swt% Cu alloy was treated by electric pulse, and the influence of pulse electric field on its cooling curve was investigated with thermal analysis method. The results show that electric pulse can remarkably refine the solidified structure of Al-5.0wt% Cu alloy, and improve the tendency of hot tearing consequently. Meantime, the effects of pulse electric field on incubated nucleation of mohen are posted by the cooling curves and the velocity of temperature change. |
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| Keywords: | Al-Cu alloy pulse electric field melt incubated nucleation cooling curve |
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