| 添加Mg和Cu对Al-Fe-V-Si合金组织与性能的影响 |
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| 引用本文： | 张林林,肖于德,周娟,黎文献.添加Mg和Cu对Al-Fe-V-Si合金组织与性能的影响[J].中国有色金属学报,2006,16(5):874-880. |
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| 作者姓名： | 张林林 肖于德 周娟 黎文献 |
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| 作者单位： | 中南大学,材料科学与工程学院,长沙,410083 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 采用OM、SEM、XRD、力学拉伸实验、硬度测试等手段研究了单独添加Mg及同时添加Mg和Cu对铸态Al-Fe-V-Si合金及其热挤压棒材显微组织和力学性能的影响。结果表明：添加Mg可以明显细化Al-Fe-V-Si合金的铸态组织，改善铝铁相的形貌与分布，还有利于提高合金的硬度与强度；同时添加Mg和Cu时，Cu部分抵消了Mg的细化作用，但经过热处理后，Mg2Si、Al2Cu和Al2CuMg相的形成，使合金的硬度与强度进一步提高。
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| 关 键 词： | Al-Fe-V-Si合金 镁 铜 组织 |
| 文章编号： | 1004-0609（2006）05-0874-07 |
| 收稿时间： | 2005-09-05 |
| 修稿时间： | 2005年9月5日 |
Effects of adding Mg and Cu elements on microstructure and mechanical properties of Al-Fe-V-Si alloy |
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| ZHANG Lin-lin,XIAO Yu-de,ZHOU Juan,LI Wen-xian.Effects of adding Mg and Cu elements on microstructure and mechanical properties of Al-Fe-V-Si alloy[J].The Chinese Journal of Nonferrous Metals,2006,16(5):874-880. |
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| Authors: | ZHANG Lin-lin XIAO Yu-de ZHOU Juan LI Wen-xian |
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| Affiliation: | School of Materials Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | The effects of adding Mg element alone and adding Mg and Cu elements together on microstructure and mechanical properties of the as-cast and as-extruded bar of Al-Fe-V-Si alloy were investigated by means of OM, SEM, XRD, tensile test and hardness test, The results show that the addition of Mg element can refine the microstructure evidently, and ameliorate the appearance and distribution of iron-phase, and hence improve the hardness and strength of the alloy. With combined addition of Mg and Cu elements, Cu-present counteracts slightly the refining effect of Mg element, but due to the formation of Mg2Si, Al2Cu and Al2CuMg, the hardness and strength of the alloy can be enhanced further by heat-treatment. |
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| Keywords: | Al-Fe-V-Si alloy magnesium copper microstructure |
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