| 原位反应法制备Al/Al3Ti复合材料组织和性能 |
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| 引用本文： | 陈子勇,陈玉勇.原位反应法制备Al/Al3Ti复合材料组织和性能[J].复合材料学报,1997,14(2):66-70. |
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| 作者姓名： | 陈子勇 陈玉勇 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院 |
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| 摘 要： | 本研究采用一种新型的原位反应工艺,使TiO2粉剂与纯铝熔体反应,生成Al3Ti颗粒,然后采用搅拌铸造法制备Al/Al3Ti复合材料。生成的Al3Ti颗粒尺寸细小,为2～3μm,而且分布均匀,与基体结合好。当TiO2加入量为纯铝基体的30wt%、反应温度为920℃时,复合材料的抗拉强度比纯铝基体提高71.5%,硬度提高134%,而延伸率较纯铝稍有下降。
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| 关 键 词： | 金属基复合材料 原位反应 铝 Al3Ti |
| 收稿时间： | 1995-10-06 |
| 修稿时间： | 1995-12-22 |
MICROSTRUCTURE AND PROPERTIES OF IN SITU REACTION Al/Al 3Ti COMPOSITE |
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| Chen Ziyong,Chen Yuyong,Shu Qun,Peng Delin,An Geying.MICROSTRUCTURE AND PROPERTIES OF IN SITU REACTION Al/Al 3Ti COMPOSITE[J].Acta Materiae Compositae Sinica,1997,14(2):66-70. |
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| Authors: | Chen Ziyong Chen Yuyong Shu Qun Peng Delin An Geying |
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| Affiliation: | Materials Science & Technology, Harbin Institute of Technology, Harbin 150011 |
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| Abstract: | Purealuminum matrix Al3Ti particle composite was made by a new in-situmet hod involvingreactions between Al and TiO2 which was stirred into molten metal. The size of the reinforcement Al3Ti particle which is homogeneous in the pure Al matrix is 2～3 m. The combination between Al3Ti and Al matrix is very well. When the amount of TiO2 is 30wt% and the reaction temperature is 920℃, the streng th and hardness of the composite are higher than those o f purealuminum-matrix by 71.5% and 134%, respectively. However, the ductility of the composite is slightly lower than that of aluminum-matrix. |
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| Keywords: | metal matrix composite in situ reaction aluminum titanium aluminide |
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