| SiCp 在 Al 基复合材料中分散行为的研究 |
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| 引用本文： | 丁雨田,寇生中,许广济,陈体军.SiCp 在 Al 基复合材料中分散行为的研究[J].兰州理工大学学报,1998(1). |
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| 作者姓名： | 丁雨田 寇生中 许广济 陈体军 |
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| 作者单位： | 甘肃工业大学材料工程系 |
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| 基金项目： | 甘肃省“八五”科技攻关项目 |
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| 摘 要： | 研究了合金熔体的固相率、搅拌速度、合金元素加入量、粒子预处理和搅拌时间等因素对Ａｌ基复合材料中ＳｉＣ粒子分散行为的影响和ＳｉＣ粒子在Ａｌ合金熔体中的混合过程．实验结果表明，４０％～５０％的熔体固相率最适宜粒子在熔体中混入，由于Ｌｉ极易氧化不利于ＳｉＣ粒子在熔体中的均匀分散．而且随搅拌时间的延长和Ｍｇ量的增多，ＳｉＣ粒子的分散更趋向均匀化．
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| 关 键 词： | Al基复合材料 SiC粒子 半固态复合铸造 固相率 预处理 |
Investigation of dispersion behavior of SiC particles in Al matrix composite |
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| Ding Yutian,Kou Shengzhong,Xu Guangji,Chen Tijun.Investigation of dispersion behavior of SiC particles in Al matrix composite[J].Journal of Lanzhou University of Technology,1998(1). |
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| Authors: | Ding Yutian Kou Shengzhong Xu Guangji Chen Tijun |
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| Abstract: | The influences of solid fraction of alloy melt, stirring speed, amount of addition of alloy element, per treatment of SiC particles and stirring time on dispersion behavior of SiC particles in Al matrix composite and the mixing process in alloy melt are investigated. Experiment results show that 40% 50% solid fraction of alloy melt is the most suitable for mixing of SiC particles in alloy melt. Addition of element Li is not beneficial to uniform dispersion of SiC particles because of its oxidization. However the more the element Mg added and the longer the melt stirred, the more uniform the dispersion of SiC particles will be. |
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| Keywords: | Al matrix composite SiC particles semi solid fraction composite casing solid fraction pre treatment |
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