| T4态Al-Mg-Si合金板材的预时效工艺研究 |
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| 引用本文： | 田妮,赵刚,王建军,黄涛,聂波,左良,刘春明.T4态Al-Mg-Si合金板材的预时效工艺研究[J].沈阳黄金学院学报,2010(2):137-142. |
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| 作者姓名： | 田妮 赵刚 王建军 黄涛 聂波 左良 刘春明 |
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| 作者单位： | [1]东北大学材料各向异性与织构教育部重点实验室,沈阳110819 [2]沈阳师范大学物理科学与技术学院,沈阳110034 [3]山东兖矿轻合金有限公司,山东邹城273515 |
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| 基金项目： | 国家高技术研究发展计划（863计划）项目（2007AA03Z551）; 中央高校基本科研业务费（N090302003）; 辽宁省教育厅科学技术研究项目（2008T184）; 沈阳市人才资源开发项目资助 |
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| 摘 要： | 采用硬度和电导率测定结合TEM/EDS组织分析研究了预时效温度及预时效时间对T4态Al-1.3Si-1.2Mg-0.6Cu合金板材成形性能、室温停放稳定性及烤漆硬化性的影响.结果表明：能同时有效改善该合金T4态板材的成形性、室温停放过程中的组织性能稳定性及烤漆硬化性的最佳预时效工艺为190℃左右保温约8 min.当预时效温度高于190℃或预时效时间过长,将不利于合金板材成形性的改善;若预时效温度低于190℃或预时效时间过短,则不利于合金板材预时效处理后的室温停放稳定性及烤漆硬化性的发挥.
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| 关 键 词： | Al-Mg-Si合金 车身板 预时效 成形性 烤漆硬化性. |
Pre-aging treatment of Al-Mg-Si aluminum alloy sheet for automotive panels in T4 temper |
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| Authors: | TIAN Ni ZHAO Gang WANG Jian-jun HUANG Tao NIE Bo ZUO Liang LIU Chun-ming |
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| Affiliation: | 1.Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education),Northeastern University,Shenyang 110819,China;2.College of physical Science and Technology,Shenyang Normal University,Shenyang 110034,China;3.Shandong Yankuang Light Alloy Co.ltd,Zoucheng 273515,China) |
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| Abstract: | Effects of pre-aging temperature and pre-aging time on the formability,microstructural stability at RT and bake-hardening ability of Al-1.3Si-1.2Mg-0.6Cu aluminum alloy sheet for automobile panel in T4 temper were investigated by hardness measurement,electrical conductivity test and TEM/EDS.The results indicate that the pre-aging process of at 190 ℃ for about 8 min is optimal for Al-1.3Si-1.2Mg-0.6Cu aluminum alloy sheet,with which the formability,microstructure stability and bake-hardening ability can be improved synchronously.The formability is deteriorated with a higher pre-aging temperature over 190 ℃ or a longer pre-aging time than 8 min,while the microstructure stability and the bake-hardening ability are reduced with a lower pre-aging temperature or a shorter pre-aging time. |
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| Keywords: | Al-Mg-Si aluminum alloy automobile panel pre-aging formability bake-hardening ability |
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