| 化合物相的析出对Mg-Sn二元合金导热性能的影响 |
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| 引用本文： | 潘虎成,黄韫淼,高正源,黄秋燕,彭 建,潘复生.化合物相的析出对Mg-Sn二元合金导热性能的影响[J].稀有金属材料与工程,2017,46(11):3311-3315. |
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| 作者姓名： | 潘虎成 黄韫淼 高正源 黄秋燕 彭 建 潘复生 |
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| 作者单位： | 东北大学 材料各向异性与织构教育部重点实验室,东北大学 材料各向异性与织构教育部重点实验室,重庆大学 国家镁合金材料工程技术研究中心,重庆大学 国家镁合金材料工程技术研究中心,重庆大学 国家镁合金材料工程技术研究中心,重庆大学 国家镁合金材料工程技术研究中心 |
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| 基金项目： | 国家自然科学基金资助（项目号51171043，51371046，51501032），中央高校基本科研业务费（No. N130510002, No. N141003001, No. L1502025 and No. L1502047），辽宁省科技厅一般项目（L20150176）以及CQZJKY2013001，2014QK263，CX201407等项目。 |
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| 摘 要： | 研究了添加不同含量的Sn(3%,6%,9%,质量分数)对铸态、固溶态及时效态Mg-Sn二元合金导热性能的影响。结果表明,铸态及固溶处理态Mg-Sn合金的热导率均随着Sn元素含量的增加不断降低,其中Sn含量最多的固溶态Mg-10Sn合金所对应的热导率降低至52.6 W/(m·K);同固溶态合金相比,相同溶质含量的铸态合金的热导率更高。Mg-Sn合金的热导率随时效的进行逐渐升高,Mg-3Sn、Mg-6Sn及Mg-10Sn合金的热导率分别最终可达到125、120及110 W/(m·K)。分析表明,镁合金热导率的不断升高可以归结于基体的纯化效应,Sn元素的原子大小、核外电子分布以及化合价等均会对Mg-Sn合金的导热性能产生影响。
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| 关 键 词： | 镁合金 导热性能 热处理 第二相 |
| 收稿时间： | 2015/9/7 0:00:00 |
| 修稿时间： | 2015/11/10 0:00:00 |
Effect of compounds precipitation on thermal conductivity of Mg-Sn binary alloy |
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| Hucheng Pan,Yunmiao Huang,Zhengyuan Gao,Qiuyan Huang,Jian Peng and Fusheng Pan.Effect of compounds precipitation on thermal conductivity of Mg-Sn binary alloy[J].Rare Metal Materials and Engineering,2017,46(11):3311-3315. |
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| Authors: | Hucheng Pan Yunmiao Huang Zhengyuan Gao Qiuyan Huang Jian Peng and Fusheng Pan |
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| Affiliation: | Key Laboratory for Anisotropy and Texture of Materials Ministry of Education,Northeastern University,Key Laboratory for Anisotropy and Texture of Materials Ministry of Education,Northeastern University,National Engineering Research Center for Magnesium Alloys,Chongqing University,National Engineering Research Center for Magnesium Alloys,Chongqing University,National Engineering Research Center for Magnesium Alloys,Chongqing University,National Engineering Research Center for Magnesium Alloys,Chongqing University |
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| Abstract: | In this work, effects of the Sn additions (3 wt.%, 6 wt.%, 9 wt.%)on thermal conductivities of the as-cast, as-homogenized and as-aged Mg-Sn binary alloys were investigated. The results showed that thermal conductivities of the both as-cast and as-homogenized Mg-Sn alloys decreased with content of Sn addition, and corresponding thermal conductivity of the as-homogenized Mg-10Sn decreased as 52.6W/m.K. Compared with as-homogenized sample, thermal conductivity of the as-cast alloy with the same solute content was lower. Thermal conductivity of the Mg-Sn alloy increased with aging treatment, and thermal conductivities of the as-aged Mg-3Sn, Mg-6Sn and Mg-10Sn alloys saturated as 125W/m.K, 120W/m.K and 110W/m.K respectively. Purification of the Mg matrix contributed to the thermal conductivity increment, and atomic size, electron configuration and the charge of the Sn element determined the thermal conductivity of the Mg-Sn alloy. |
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| Keywords: | Magnesium alloys thermal conductivity heat treatment second phases |
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