| 液态模锻2A50铝合金的组织和性能均匀化控制 |
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| 引用本文： | 杜之明,陈刚,韩飞,曹广祥,柳君,李宏伟,张新,谢水生.液态模锻2A50铝合金的组织和性能均匀化控制[J].中国有色金属学会会刊,2011,21(11):2384-2390. |
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| 作者姓名： | 杜之明 陈刚 韩飞 曹广祥 柳君 李宏伟 张新 谢水生 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院;北京有色金属研究总院有色金属制造与加工国家重点实验室;北京市特种车辆部件先进制造与评估工程技术研究中心;北京北方车辆集团有限公司工艺研究所; |
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| 基金项目： | Projects (50774026, 50875059) supported by the National Natural Science Foundation of China; Project (20070420023) supported by the China Postdoctoral Science Foundation; Project (2008AA03A239) supported by the National High-tech Research and Development Program of China |
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| 摘 要： | 对2A50铝合金液态模锻组织性能均匀化控制进行研究,采有简单加载和复合加载两种方式成形负重轮制件。结果表明：简单加载方式成形的制件,各部之间存在组织和性能的不均匀性,壁部的组织较底部粗大,力学性能也较低,制件的转角处存在缺陷。通过采用复合加载,制件壁部的组织和性能得到明显提高。随着补缩量的增加,制件各部之间的组织和性能趋于均匀化。补缩量为4mm时,转角处的缺陷逐渐消失;补缩量为10mm时,制件可以获得均匀细小的微观组织,晶粒大小为20-30μm,抗拉强度为355MPa,伸长率为10%。采用复合加载可以控制液态模锻制件的组织和性能。
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| 关 键 词： | 铝合金 液态模锻 均匀化 复合加载 |
| 收稿时间： | 23 September 2010 |
Homogenization on microstructure and mechanical properties of 2A50 aluminum alloy prepared by liquid forging |
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| DU Zhi-ming,,CHEN Gang,HAN Fei,CAO Guang-xiang,LIU Jun,LI Hong-wei,ZHANG Xin,XIE Shui-sheng .School of Materials Science , Engineering,Harbin Institute of Technology,Harbin ,China,.State Key Laboratory for Fabrication , Processing of Nonferrous Metals,Beijing General Research Institute for Nonferrous Metals,Beijing.Homogenization on microstructure and mechanical properties of 2A50 aluminum alloy prepared by liquid forging[J].Transactions of Nonferrous Metals Society of China,2011,21(11):2384-2390. |
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| Authors: | DU Zhi-ming CHEN Gang HAN Fei CAO Guang-xiang LIU Jun LI Hong-wei ZHANG Xin XIE Shui-sheng School of Materials Science Engineering Harbin Institute of Technology Harbin China State Key Laboratory for Fabrication Processing of Nonferrous Metals Beijing General Research Institute for Nonferrous Metals Beijing |
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| Affiliation: | DU Zhi-ming1,2,3,CHEN Gang1,HAN Fei1,CAO Guang-xiang1,LIU Jun1,LI Hong-wei3,4,ZHANG Xin3,XIE Shui-sheng2 1.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China,2.State Key Laboratory for Fabrication and Processing of Nonferrous Metals,Beijing General Research Institute for Nonferrous Metals,Beijing 100088,3.Beijing Engineering Research Center for Advanced Manufacturing and Elevation of Special Vehicle Parts,Beijing 100072,4.Technology Institute,Beijing... |
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| Abstract: | The homogenization on microstructure and mechanical properties of 2A50 aluminum alloy prepared by liquid forging was investigated.Wheel hubs were produced using direct and compound loading.The results show that the microstructure and mechanical properties are inhomogeneous in direct forged samples.The microstructure of the wall is coarser than that of the base,and the mechanical properties are lower and some defects are detected at the wheel corner.Using compound loading,the microstructure and mechanical pr... |
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| Keywords: | homogenization aluminum alloy liquid forging compound loading |
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