| 挤压比及不同Mn含量对Mg-10Gd-6Y-1.6Zn-xMn镁合金组织性能的影响 |
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| 引用本文： | 胡耀波,杨生伟,姚青山,潘复生.挤压比及不同Mn含量对Mg-10Gd-6Y-1.6Zn-xMn镁合金组织性能的影响[J].稀有金属材料与工程,2017,46(1):135-142. |
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| 作者姓名： | 胡耀波 杨生伟 姚青山 潘复生 |
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| 作者单位： | 重庆大学材料科学与工程学院;国家镁合金材料工程技术研究中心,重庆大学材料科学与工程学院,重庆大学材料科学与工程学院,重庆大学材料科学与工程学院 |
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| 基金项目： | 重庆大学中央高校基本科研业务费(CDJZR13130036),国家自然科学基金(51474043) |
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| 摘 要： | 通过模铸法制备了Mg-10Gd-6Y-1.6Zn-xMn (x=0.4, 0.8, 1.2, 1.6, 2.0, wt.%)系列镁合金,研究了挤压比及Mn含量对Mg-10Gd-6Y-1.6Zn-xMn镁合金显微组织及室温力学性能的影响。研究结果表明：铸态Mg-10Gd-6Y-1.6Zn-xMn合金经热挤压后,合金中的长周期堆垛有序(LPSO)结构由亚稳的18R结构转变为稳定的14H结构。大挤压比能够显著提高合金的室温力学性能,当Mn含量为0.8%时,未时效态抗拉强度达到386MPa,断后延伸率约为10%。
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| 关 键 词： | 镁合金 挤压比 长周期堆垛有序(LPSO)结构 显微组织 力学性能 |
| 收稿时间： | 2015/2/4 0:00:00 |
| 修稿时间： | 2015/7/20 0:00:00 |
Effects of Extrusion Ratio and Mn Contents on Microstructure and Properties of Mg-10Gd-6Y-1.6Zn-xMn Magnesium Alloy |
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| Hu Yaobo,Yang Shengwei,Yao Qingshan and Pan Fusheng.Effects of Extrusion Ratio and Mn Contents on Microstructure and Properties of Mg-10Gd-6Y-1.6Zn-xMn Magnesium Alloy[J].Rare Metal Materials and Engineering,2017,46(1):135-142. |
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| Authors: | Hu Yaobo Yang Shengwei Yao Qingshan and Pan Fusheng |
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| Affiliation: | College of Materials Science and Engineering,Chongqing University;China;National Engineering Research Center for Magnesium Alloys;China,College of Materials Science and Engineering,Chongqing University,College of Materials Science and Engineering,Chongqing University,College of Materials Science and Engineering,Chongqing University |
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| Abstract: | In this study, various amount of Mn elements (x=0.4, 0.8, 1.2, 1.6, 2.0, wt. %) was added to Mg-10Gd-6Y-1.6Zn alloys. We investigated the effect of Mn elements and extrusion ratio on the microstructures and mechanical properties of the alloys. The results show that in the hot extrusion Mg-10Gd-6Y-1.6Zn-xMn alloys, the metastable 18R structure turned into a stable 14H structure of the long period stacking ordered (LPSO) structures. Large extrusion ratio can significantly improve mechanical properties of the alloys at room temperature. When 0.8 wt.% Mn element was added to the alloy, its tensile strength of no-aged status is 386 MPa, and its elongation is about 10%. |
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| Keywords: | magnesium alloy extrusion ratio long period stacking ordered (LPSO) structure microstructure mechanical properties |
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