| 短纤维增强铝铜二元合金复合材料凝固偏析的数值模拟 |
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| 引用本文： | 刘政,靖青秀.短纤维增强铝铜二元合金复合材料凝固偏析的数值模拟[J].材料工程,2006(7):51-55. |
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| 作者姓名： | 刘政 靖青秀 |
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| 作者单位： | 江西理工大学,材料与化学工程学院,江西,赣州,341000;江西理工大学,材料与化学工程学院,江西,赣州,341000 |
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| 基金项目： | 教育部科学技术研究项目
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江西省自然科学基金 |
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| 摘 要： | 根据凝固过程中的守恒原理,建立了铝基复合材料凝固过程的数学模型.根据所建立的模型对氧化铝短纤维增强铝铜二元合金复合材料进行数值模拟,模拟结果表明:氧化铝短纤维周围有低熔点物质及溶质富集;随冷却速度增大,复合材料基体偏析加剧;随复合材料中纤维体积分数增大,基体中偏析减小.
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| 关 键 词： | 铝铜二元合金 复合材料 凝固 偏析 数值模拟 |
| 文章编号： | 1001-4381(2006)07-0051-05 |
| 收稿时间： | 2005-02-28 |
| 修稿时间： | 2006-04-10 |
Numerical Simulation on Solute Segregation During Solidification in Fiber Reinforced Aluminum-copper Binary Alloy Composites |
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| LIU Zheng,JING Qing-xiu.Numerical Simulation on Solute Segregation During Solidification in Fiber Reinforced Aluminum-copper Binary Alloy Composites[J].Journal of Materials Engineering,2006(7):51-55. |
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| Authors: | LIU Zheng JING Qing-xiu |
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| Affiliation: | Faculty of Material and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi,China |
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| Abstract: | The solidification model of aluminum alloy composites was established according to the law of conservation. The numerical simulation of alumina short fiber reinforced aluminum-copper binary alloy composite was carried out with the model. The results indicate that the elements with low melting point and solute are concentrated around alumina short fibers. The concentration segregation in the matrix is increased with cooling rate rising and decreased with of fiber volume of increasing. |
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| Keywords: | aluminum-copper binary alloy composite solidification segregation numerical simulation |
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