| 纤维增强铝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. 纤维增强铝合金复合材料凝固偏析的数值模拟[J]. 材料与冶金学报, 2003, 2(4): 281-285 |
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| 作者姓名： | 刘政 靖青秀 |
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| 作者单位： | 南方冶金学院,材料与化学工程学院,江西,赣州,341000;南方冶金学院,材料与化学工程学院,江西,赣州,341000 |
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| 基金项目： | 国家教育部科学技术研究重点项目(00191)，江西省自然科学基金项目(0150032). |
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| 摘 要： | 根据凝固过程中的守恒原理,建立了铝合金复合材料凝固过程的数学模型.根据所建立的模型对Al2O3f/Al 4 5Cu复合材料进行数值模拟,模拟结果表明:Al2O3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： | 铝合金复合材料 凝固 偏析 数值模拟 |
| 文章编号： | 1671-6620(2003)04-0281-05 |
| 修稿时间： | 2003-11-03 |
Numerical simulation on solute segregation during solidification in fiber reinforced aluminum alloy composites |
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| LIU Zheng,JING Qing-xiu. Numerical simulation on solute segregation during solidification in fiber reinforced aluminum alloy composites[J]. Journal of Materials and Metallurgy, 2003, 2(4): 281-285 |
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| Authors: | LIU Zheng JING Qing-xiu |
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| Abstract: | A solidification model of aluminum alloy composites was established according to the law of conservation. The numerical simulation of Al_2O_(3f)/Al-4.5Cu composite was carried out with the model. The results show that the elements with low melting point and solute are concentrated around Al_2O_3 short fibers. The concentration segregation in the matrix increases with the increase of cooling rate and decreases with the increase of fiber volume fraction. |
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| Keywords: | aluminum alloy composite solidification segregation numerical simulation |
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