| 不同热处理机制对Al-1%Si定向凝固棒材组织和性能的影响 |
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| 引用本文： | 朱小平,郭昌阳,张鸿,王自东. 不同热处理机制对Al-1%Si定向凝固棒材组织和性能的影响[J]. 有色金属材料与工程, 2006, 27(2): 3-7 |
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| 作者姓名： | 朱小平 郭昌阳 张鸿 王自东 |
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| 作者单位： | 北京科技大学材料科学与工程学院,北京,100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 对采用自制的真空熔炼、氩气保护连续定向凝固设备制备出的具有连续柱状晶组织的φ5．0mm的Al-1％Si合金棒材进行热处理。通过对不同热处理条件下得到的组织、硅颗粒的形貌和分布的变化规律的对比研究，提出了进一步优化其性能的热处理工艺。该工艺在保持原有的柱状晶组织的良好塑性和导电性能的前提下，通过改善硅相的形貌、尺寸及分布，进一步提高了合金棒材的冷拔成形性能。
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| 关 键 词： | 热处理 Al-1％Si合金棒材 定向凝固 组织 硅颗粒 力学性能 |
| 文章编号： | 1005-2046(2006)02-0003-05 |
| 收稿时间： | 2005-12-12 |
| 修稿时间： | 2005-12-12 |
Effect of Different Heat Treatments on Structure and Properties of Al-1%Si Bar Prepared by Oriented Freezing Process |
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| ZHU Xiao-ping,GUO Chang-yang,ZHANG Hong,WANG Zi-dong. Effect of Different Heat Treatments on Structure and Properties of Al-1%Si Bar Prepared by Oriented Freezing Process[J]. Nonferrous Metal Materials and Engineering, 2006, 27(2): 3-7 |
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| Authors: | ZHU Xiao-ping GUO Chang-yang ZHANG Hong WANG Zi-dong |
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| Abstract: | Al-1%Si alloy bars with a diameter of 5 mm and columnar crystals were prepared by oriented freezing process under vacuum or the protection of inert gas. The structures with the grain shapes and grain distribution achieved through different heat treatments were compared with each other. A heat treatment process for achieving optimized properties was proposed |
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| Keywords: | heat treatment Al-1% Si bar oriented freezing microstructure Si grain mechanicalproperties |
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