| 铝合金基石墨复合材料的阻尼行为 |
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| 引用本文： | 谭启 陈锋. 铝合金基石墨复合材料的阻尼行为[J]. 复合材料学报, 1994, 11(4): 39-43 |
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| 作者姓名： | 谭启 陈锋 |
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| 作者单位： | 中国科学技术大学内耗与固体缺陷开放实验室，东南大学材料科学与工程系 |
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| 摘 要： | 用内耗技术研究了石墨颗粒/铝硅复合材料的低频阻尼行为,考查了阻尼对石墨含量、测量频率、温度和应变振帽的依赖关系以及相应的弹性模量的变化,比较了铸态和挤压变形复合材料的阻尼特征.对其阻尼机制作了初步的探讨.
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| 关 键 词： | 复合材料 石墨 阻尼 位错 应变振幅效应 |
| 收稿时间： | 1993-04-27 |
DAMPING BEHAVIOR OF GRAPHITE/ALUMINIUM ALLOY COMPOSITES |
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| Q,Tan. DAMPING BEHAVIOR OF GRAPHITE/ALUMINIUM ALLOY COMPOSITES[J]. Acta Materiae Compositae Sinica, 1994, 11(4): 39-43 |
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| Authors: | Q Tan |
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| Affiliation: | 1. Laboratory of lnternal Friction and Defects in Solids, University of Science and Technology of China, Hefei 230026;2. Department of Materials Science and Engineering, Southeast University, Nanjing 210018;3. Department of Materials Science and Engineering, Kyushu University, Fukuoka 812. Japan;4. Government Industrial Research Institute, Kyushu, Japen |
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| Abstract: | Damping behavior at low frequency was studied on aluminium silicon-matrixgraphite particles composites with the method of internal friction technique. The dependenceof damping on graphite content,frequency,temperature,strain amplitude,and the variationof elastic modulus were investigated. The damping characteristics of as-cast and as-extrudedcomposites were compared.The preliminary inquiry was made on the damping mechanismsof the composite materials. |
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| Keywords: | composites graphite damping dislocation strain amplitude-dependent effect |
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