| Effect of La on Microstructure and Grain-Refining Performance of Al-Ti- C Grain Refiner |
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| 作者姓名： | 许春香 梁丽萍 卢斌峰 张金山 梁伟 |
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| 作者单位： | School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China |
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| 基金项目： | Project supported by the Natural Science Foundation of Shanxi Province （20011047） and Patent Generalization Project of Shanxi Province （051025）. |
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| 摘 要： | Al-Ti-C grain refiner was prepared by SHS （self-propagating high-temperature synthesis ）-melting technique. The effect of La on the microstructures of grain refiner was studied by OM, TEM, SEM, XRD, and EDS. The experimental results indicate that La can improve the wettability between liquid aluminum and graphite ; the addition of La results in dispersive distribution of TiAl3 and TiC particles in the matrix. An excellent grain refining performance of Al-Ti-C grain refiner on commercially pure Al was obtained.
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| 关 键 词： | Al-Ti-C晶粒细化剂 显微结构 精炼性能 镧 稀土元素 |
| 文章编号： | 1002-0721（2006）05-0596-06 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2006-06-20 |
Effect of La on Microstructure and Grain-Refining Performance of Al-Ti-C Grain Refiner |
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| Chunxiang , Liping Liang, Binfeng Lu, Jinshan Zhang,Wei Liang.Effect of La on Microstructure and Grain-Refining Performance of Al-Ti- C Grain Refiner[J].Journal of Rare Earths,2006,24(5):596-601. |
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| Authors: | Chunxiang Liping Liang Binfeng Lu Jinshan Zhang Wei Liang |
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| Affiliation: | aSchool of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China |
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| Abstract: | Al-Ti-C grain refiner was prepared by SHS (self-propagating high-temperature synthesis)-melting technique. The effect of La on the microstructures of grain refiner was studied by OM, TEM, SEM, XRD, and EDS. The experimental results indicate that La can improve the wettability between liquid aluminum and graphite; the addition of La results in dispersive distribution of TiAl_3 and TiC particles in the matrix. An excellent grain refining performance of Al-Ti-C grain refiner on commercially pure Al was obtained. |
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| Keywords: | Al-Ti-C grain refiner microstructure refining performance lanthanum rare earths |
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