| 压铸镁合金材料内耗值的测量与减振机理 |
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| 引用本文： | 张津,孙智富,陶艳玲,黄奇.压铸镁合金材料内耗值的测量与减振机理[J].武汉理工大学学报,2004,26(4):22-24,32. |
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| 作者姓名： | 张津 孙智富 陶艳玲 黄奇 |
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| 作者单位： | 1. 重庆工业学院材料科学与工程学院,重庆,400050
2. 武汉理工大学材料科学与工程学院,武汉,430070 |
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| 基金项目： | 国家十五科技攻关项目 (2 0 0 1BA1311A0 5 0 - 4 ) |
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| 摘 要： | 采用自行研制的材料内耗检测仪，对AZ91D压铸镁合金材料的内耗值进行测试，并和同体积的钢、铝材料的内耗值对比。结果表明，镁合金比钢、铝等材料具有较高的内耗值，镁合金减振机理为位错钉扎材料晶界，Mg17Al12相及其它杂质、空洞是产生内耗的主要原因。
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| 关 键 词： | 镁合金 内耗（阻尼） 测试仪 机理 |
| 文章编号： | 1671-4431(2004)04-0022-03 |
Measurement to Internal Friction of Die Cast Magnesium Ally and Research on its Mechanism |
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| ZHANG Jin ,SUN Zhi-fu ,TAO Yan-ling ,HUANG Qi.Measurement to Internal Friction of Die Cast Magnesium Ally and Research on its Mechanism[J].Journal of Wuhan University of Technology,2004,26(4):22-24,32. |
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| Authors: | ZHANG Jin SUN Zhi-fu TAO Yan-ling HUANG Qi |
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| Affiliation: | ZHANG Jin 1,SUN Zhi-fu 2,TAO Yan-ling 1,HUANG Qi 1 |
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| Abstract: | By using a self-made apparatus, measure and contrast of the damping capacity of three materials, die cast magnesium alloy AZ91D, steel and aluminum, are carried out. It is find that AZ91D has greater damping capacity and is an ideal damping material. The research indicates that the dislocations, crystal boundaries, Mg 17 Al 12 phase, pores and other impurities in AZ91D are the main causes of damping. |
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| Keywords: | magnesium alloy internal friction damping apparatus mechanism |
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