| Mg-3Ce-1.2Mn-0.9Sc和Mg-3Ce-1.2Mn-1Zn镁合金铸态组织和力学性能的比较(英文) |
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| 引用本文： | 杨明波,潘复生.Mg-3Ce-1.2Mn-0.9Sc和Mg-3Ce-1.2Mn-1Zn镁合金铸态组织和力学性能的比较(英文)[J].中国有色金属学会会刊,2012,22(1):53-59. |
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| 作者姓名： | 杨明波 潘复生 |
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| 作者单位： | 重庆理工大学材料科学与工程学院;重庆理工大学汽车零部件制造及检测教育部重点实验室;重庆大学国家镁合金材料工程研究中心 |
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| 基金项目： | Project (50725413) supported by the National Natural Science Foundation of China;Project (2007CB613704) supported by the National Basic Research Program of China;Projects (2010AC4085, 2009AB4134) supported by the Chongqing Science and Technology Commission of China;Project (2010CSTC-HDLS) supported by the Program for Hundreds of Distinguished Leading Scientists of CQ CSTC, China |
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| 摘 要： | 比较研究了Mg-3Ce-1.2Mn-0.9Sc和Mg-3Ce-1.2Mn-1Zn镁合金的铸态组织和力学性能。结果表明:含Sc合金主要由α-Mg、Mg12Ce和Mn2Sc相组成,而含Zn合金则主要由α-Mg和Mg12Ce相组成。然而,含Sc和含Zn铸态合金中Mg12Ce相的形貌是不同的。含Sc合金中的Mg12Ce相主要呈颗粒状,而含Zn合金中的Mg12Ce相则主要呈连续和/或准连续的网状。同时,含Sc合金的晶粒较含Zn合金的相对较为细小。此外,虽然含Sc合金和Zn合金在室温和300°C下具有相似的抗拉性能,但含Sc合金在300°C和30MPa下持续100h后的抗蠕变性能较Zn合金的好。
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| 关 键 词： | 镁合金 Mg-Ce-Mn基合金 Sc Zn Mg12Ce相 |
| 收稿时间： | 24 December 2010 |
Comparative studies on as-cast microstructures and mechanical properties between Mg-3Ce-1.2Mn-0.9Sc and Mg-3Ce-1.2Mn-1Zn magnesium alloys |
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| YANG Ming-bo,PAN Fu-sheng.Comparative studies on as-cast microstructures and mechanical properties between Mg-3Ce-1.2Mn-0.9Sc and Mg-3Ce-1.2Mn-1Zn magnesium alloys[J].Transactions of Nonferrous Metals Society of China,2012,22(1):53-59. |
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| Authors: | YANG Ming-bo PAN Fu-sheng |
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| Affiliation: | 1. Materials Science and Engineering College, Chongqing University of Technology, Chongqing 400054, China; 2. Key Laboratory of Automobile Components Manufacturing and Testing Technology of Ministry of Education, Chongqing University of Technology, Chongqing 400054, China; 3. National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400030, China |
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| Abstract: | The as-cast microstructures and mechanical properties of Mg-3Ce-1.2Mn-0.9Sc and Mg-3Ce-1.2Mn-1Zn magnesium alloys were investigated and compared. The results indicate that the Sc-containing alloy mainly consists of α-Mg, Mg12Ce and Mn2Sc phases, and the Zn-containing alloy is mainly composed of α-Mg and Mg12Ce phases. The morphologies of the Mg12Ce phases in the two as-cast alloys are different. The Mg12Ce phases in the Sc- and Zn-containing alloys mainly exhibit particle-like shapes and continuous and/or quasti-continuous nets, respectively. Furthermore, the grains of the Sc-containing alloy are finer than those of the Zn-containing alloy. In addition, the Sc- and Zn-containing alloys have similar as-cast tensile properties at room temperature and 300 °C. However, the Sc-containing alloy exhibits higher creep-resistant properties at 300 °C and 30 MPa for 100 h than the Zn-containing alloy. |
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| Keywords: | magnesium alloy Mg-Ce-Mn based alloys Sc Zn Mg12Ce phase |
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