| 镁及镁合金阻尼特性的研究进展 |
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| 引用本文： | 刘楚明,纪仁峰,周海涛,陈明安.镁及镁合金阻尼特性的研究进展[J].中国有色金属学报,2005,15(9):1319-1325. |
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| 作者姓名： | 刘楚明 纪仁峰 周海涛 陈明安 |
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| 作者单位： | 中南大学,材料科学与工程学院,长沙,410083 |
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| 摘 要： | 综述了镁及镁合金阻尼特性的研究进展及阻尼镁合金材料的研究现状,介绍了其阻尼性能的评价方法,阐明了其阻尼机制符合G-L位错钉扎模型、基面(0001)上的位错脱钉运动是造成镁合金在室温具有高应变振幅阻尼性能的主要原因,概述了应变振幅、温度、变形工艺、热处理、晶粒尺寸和取向以及合金元素对镁合金阻尼性能的影响.
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| 关 键 词： | 镁合金 阻尼性能 G-L模型 位错 |
| 文章编号： | 1004-0609（2005）09-1319-07 |
| 收稿时间： | 2005-03-21 |
| 修稿时间： | 2005-06-28 |
Research and development progress of damping capacity of magnesium and magnesium alloys |
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| LIU Chu-ming,JI Ren-feng,ZHOU Hai-tao,CHEN Ming-an.Research and development progress of damping capacity of magnesium and magnesium alloys[J].The Chinese Journal of Nonferrous Metals,2005,15(9):1319-1325. |
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| Authors: | LIU Chu-ming JI Ren-feng ZHOU Hai-tao CHEN Ming-an |
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| Affiliation: | School of Materials Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | The research of damping capacity on magnesium and magnesium alloys and development of Mg-based damping materials were reviewed.Damping mechanism of the magnesium is mostly related to G-L dislocation model and the high damping capacity on strain amplitude is due to the pinned dislocation breakaway from the base plane(0001).Finally the effects of various factors including strain amplitude,temperature,deformation,heat treatment,grain size and grain orientation as well as alloy elements,on damping capacity were discussed. |
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| Keywords: | magnesium alloys damping capacity G-L model dislocation |
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