| Microstructures, mechanical properties and compressive creep behaviors of as-cast Mg-5%Sn-（0-1 .0）%Pb alloys |
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| 引用本文： | 王卿,陈云贵,肖素芬,刘红梅,唐永柏,赵源华.Microstructures, mechanical properties and compressive creep behaviors of as-cast Mg-5%Sn-（0-1 .0）%Pb alloys[J].中南工业大学学报(英文版),2011,18(2):290-295. |
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| 作者姓名： | 王卿 陈云贵 肖素芬 刘红梅 唐永柏 赵源华 |
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| 作者单位： | [1]School of Materials Science and Engineering, Sichuan University, Chengdu 610065, China [2]Department of Chemical and Materials Engineering, The University of Auckland, Private Bag 92019, Auckland, New Zealand |
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| 基金项目： | Project（03GG009-007-4） supported by the Key Program of Science and Technology Bureau of Sichuan Province, China |
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| 摘 要： |
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| 关 键 词： | 锡铅合金 压蠕变行为 力学性能 镁合金 Sn 显微组织 Pb 微观结构 |
| 收稿时间： | 22 July 2008 |
Microstructures, mechanical properties and compressive creep behaviors of as-cast Mg-5%Sn-(0–1.0)%Pb alloys |
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| Qing Wang, Yun-gui Chen, Su-fen Xiao, Hong-mei Liu, Yong-bai Tang and Yuan-hua Zhao.Microstructures, mechanical properties and compressive creep behaviors of as-cast Mg-5%Sn-(0–1.0)%Pb alloys[J].Journal of Central South University of Technology,2011,18(2):290-295. |
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| Authors: | Qing Wang Yun-gui Chen Su-fen Xiao Hong-mei Liu Yong-bai Tang and Yuan-hua Zhao |
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| Affiliation: | (1) Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, People’s Republic of China;(2) Ford Motor Research & Engineering (Nanjing) Co. Ltd., Nanjing, 211100, People’s Republic of China;(3) Nanjing Welbow Metals Co. Ltd., Honglan, Nanjing, 211221, People’s Republic of China |
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| Abstract: | The microstructures, tensile properties and compressive creep behaviors of Mg-5%Sn-(0–1.0)%Pb (mass fraction) alloys were
studied. The microstructures of the Mg-Sn-Pb alloys consist of dendritic α-Mg and Mg2Sn phase. The addition of Pb can refine the size of Mg2Sn phase and grain size, reduce the amount of Mg2Sn phase at grain or inter-dendrite boundaries and change the distribution of Mg2Sn phase. Pb exists in the Mg2Sn phase or dissolves in α-Mg matrix. The mechanical properties of the tested alloys at room temperature are improved with the addition of Pb. When
the Pb content is over 0.5%, the mechanical properties are decreased gradually. The Mg-5%Sn-0.5%Pb shows the best ultimate
tensile strength and elongation, 174 MPa and 14.3%, respectively. However, the compressive creep resistance of the Mg-Sn-Pb
alloys is much lower than that of the Mg-Sn binary alloy at 175 °C with applied load of 55 MPa, which means that Pb has negative
effects on the compressive creep resistance of the as-cast Mg-Sn alloys. |
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| Keywords: | Mg-Sn-Pb alloy microstructures mechanical properties compressive creep Mg2Sn phase |
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