| 采用原位反应近液相线铸造法制备Al2O3p/Al-Cu基复合材料 |
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| 引用本文： | 刘慧敏,格日乐,那音古日巴,张军,赵洪生.采用原位反应近液相线铸造法制备Al2O3p/Al-Cu基复合材料[J].北京科技大学学报,2009,31(4). |
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| 作者姓名： | 刘慧敏 格日乐 那音古日巴 张军 赵洪生 |
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| 作者单位： | 1. 内蒙古工业大学材料科学与工程学院,呼和浩特,010051
2. 包头铝业股份有限公司,包头,014046 |
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| 基金项目： | 国家自然科学基金资助项目(No.50661003);;内蒙古自然科学基金资助项目(No.20080404zd17) |
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| 摘 要： | 采用原位反应近液相线铸造方法制备含有少量原位Al2O3颗粒的Al-Cu基复合材料,利用光学显微镜观察复合材料的铸态组织,并通过透射电镜观察复合材料中的原位Al2O3颗粒的分布与形貌,研究原位颗粒对近液相线铸造Al-Cu合金铸态组织形成机制的影响.结果发现:原位Al2O3颗粒比较均匀地分布于基体合金中,尺寸分布于1μm范围内,形貌呈多边形.随着原位Al2O3颗粒含量的增加,复合材料的铸态组织逐渐被细化和均匀化;当原位Al2O3颗粒的质量分数达到5.3%时,获得均匀细小的蔷薇状组织.
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| 关 键 词： | 金属基复合材料 铝铜合金 氧化铝颗粒 原位反应 近液相线铸造 组织 |
Al2O3p/Al-Cu matrix composites produced by in-situ reactive near-liquidus casting |
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| LIU Hui-min,Gerile,Nayinguriba,ZHANG Jun,ZHAO Hong-sheng.Al2O3p/Al-Cu matrix composites produced by in-situ reactive near-liquidus casting[J].Journal of University of Science and Technology Beijing,2009,31(4). |
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| Authors: | LIU Hui-min Gerile Nayinguriba ZHANG Jun ZHAO Hong-sheng |
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| Abstract: | Microstructures of in-situ reactive near-liquidus cast Al2O3/Al-Cu matrix composites were observed by optical microscope,and transmission electron microscope was used to examine the distribution and morphology of in-situ Al2O3 particles in the Al-Cu alloy matrix.The effect of in-situ Al2O3 particles on the formation mechanism of microstructure of the near-liquidus cast Al-Cu alloy was analyzed.It is shown that as-cast microstructures of the in-situ processed composites have a relatively uniform distribution... |
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| Keywords: | metal matrix composites Al-Cu alloy alumina particle in-situ reaction near-liquidus casting microstructure |
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