| Mn和Zr对新型Al-Mg-Si-Cu合金组织与性能的影响 |
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| 引用本文： | 何立子,陈彦博,崔建忠,张晓博,胡壮麒.Mn和Zr对新型Al-Mg-Si-Cu合金组织与性能的影响[J].稀有金属材料与工程,2004,33(12):1337-1340. |
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| 作者姓名： | 何立子 陈彦博 崔建忠 张晓博 胡壮麒 |
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| 作者单位： | 1. 中国科学院金属研究所,辽宁,沈阳,110016
2. 东北大学,辽宁,沈阳,110004 |
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| 基金项目： | 国家“九五”重点科技项目(98-A28-01-09) |
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| 摘 要： | 研究了Mn和Zr对新型Al-Mg-Si-Cu合金的显微组织和机械性能的影响，并采用XRD，EDAX和TEM分析了合金中析出相的类型和成分。结果表明：单独添加Zr，合金的强度降低，塑性提高；复合添加0.3％Mn和0．08％Zr，合金-T6的组织中出现了大量的粒状或条状AlCrMnFeSi相，合金的强度和塑性均有所提高；继续增加Mn和Zr的含量，由于合金中时效强化相——Mg2Si数量的显著减少和粗大AlCrMnFeSi相的增加，造成合金性能下降。
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| 关 键 词： | Mn Zr Al-Mg-Si-Cu合金 组织 性能 |
| 文章编号： | 1002-185X(2004)12-1337-04 |
| 修稿时间： | 2003年4月11日 |
Effect of Mn and Zr on Microstructures and Properties of New Type Al-Mg-Si-Cu Alloys |
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| He Lizi,Chen Yanbo,Cui Jianzhong,Zhang Xiaobo,Hu Zhuangqi.Effect of Mn and Zr on Microstructures and Properties of New Type Al-Mg-Si-Cu Alloys[J].Rare Metal Materials and Engineering,2004,33(12):1337-1340. |
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| Authors: | He Lizi Chen Yanbo Cui Jianzhong Zhang Xiaobo Hu Zhuangqi |
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| Abstract: | The effect of Mn and Zr on the microstructures and properties of new type Al-Mg-Si-Cu alloys were studied, the type and composition of the precipitates were analyzed by XRD, EDAX and TEM. The results showed that the strength decreased and ductility increased with adding Zr. Adding both 0.03%Mn and 0.08%Zr, granular or rod AlCrMnFeSi dispersoids were present profusely in the microstructures of the alloy-T6, both the strength and ductility of the alloy increased. Continuously increasing Mn and Zr, the properties decreased due to the reduce of precipitate-strengthening phase Mg2Si and the occurrence of coarse AlCrMnFeSi. |
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| Keywords: | Mn Zr Al-Mg-Si-Cu alloy microstructures properties |
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