| 最终形变热处理工艺对Al-5.2Mg-3.1Zn(wt.%)铝合金组织性能的影响 |
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| 引用本文： | 丁清伟,张迪,侯胜利,潘艳林,张济山.最终形变热处理工艺对Al-5.2Mg-3.1Zn(wt.%)铝合金组织性能的影响[J].稀有金属材料与工程,2019,48(8):2661-2666. |
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| 作者姓名： | 丁清伟 张迪 侯胜利 潘艳林 张济山 |
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| 作者单位： | 北京科技大学新金属材料国家重点实验室,北京科技大学新金属材料国家重点实验室,北京科技大学新金属材料国家重点实验室,北京科技大学新金属材料国家重点实验室,北京科技大学新金属材料国家重点实验室 |
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| 基金项目： | 国防科技创新特区资助,现代交通金属材料与加工技术北京实验室资助,中央高校基本科研业务费FRF-GF-17-A1 |
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| 摘 要： | 本文深入研究了最终形变热处理工艺对Al-5.2Mg-3.1Zn铝合金组织性能的影响。通过维氏硬度测试研究了变形工艺对最终形变热处理最终时效工艺的影响。通过金相观察和透射电镜观察发现经过最终形变热处理的板材内部存留大量的位错结构和纤维状组织,且其含量取决于板材的变形工艺。通过板材的力学性能和晶间腐蚀性能研究发现：(1)变形温度的提高会降低板材的强度,但会提高板材的延伸率；而变形量的作用则恰恰与之相反；(2)提高变形温度和变形量都有利于提高板材的抗晶间腐蚀性能。
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| 关 键 词： | 最终形变热处理 Al-Mg-Zn合金 力学性能 晶间腐蚀。 |
| 收稿时间： | 2018/11/30 0:00:00 |
| 修稿时间： | 2018/12/18 0:00:00 |
Effect of Final Thermo-mechanical Treatment on the microstructure and property of Al-5.2Mg-3.1Zn(wt.%) aluminum alloy |
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| Qingwei Ding,Di Zhang,Shengli Hou,Yanlin Pan and Jishan Zhang.Effect of Final Thermo-mechanical Treatment on the microstructure and property of Al-5.2Mg-3.1Zn(wt.%) aluminum alloy[J].Rare Metal Materials and Engineering,2019,48(8):2661-2666. |
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| Authors: | Qingwei Ding Di Zhang Shengli Hou Yanlin Pan and Jishan Zhang |
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| Affiliation: | State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing |
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| Abstract: | The effect of final thermo-mechanical treatment on the microstructure and property of Al-5.2Mg-3.1Zn(wt.%) aluminum alloy have been studied. The effect of deformation parameter on the final aging treatment has been studied by Vickers hardness tests. Observations under optical microscopy and transmission electron microscopy show that there are lots of dislocation structure and fibrous structure in the microstructure, and their volume fractions depend on the deformation parameter. The tensile test reveals that higher deformation temperature benefits the higher strength of sheets, but decreases the elongation. However, the amount of deformation has the completely oppsite effect on the tensile property. The increase of deformation temperature and deformation amount both increase the intergranular corrosion resistance of sheets. |
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| Keywords: | Final thermo-mechanical treatment Al-Mg-Zn aluminum alloy tensile property intergranular corrosion |
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