| 粉末冶金法SiC颗粒增强镁基复合材料的阻尼性能研究 |
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| 引用本文： | 阮爱杰,马立群,卞亚娟,潘安霞,丁毅.粉末冶金法SiC颗粒增强镁基复合材料的阻尼性能研究[J].轻合金加工技术,2010,38(3). |
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| 作者姓名： | 阮爱杰 马立群 卞亚娟 潘安霞 丁毅 |
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| 作者单位： | 南京工业大学材料科学与工程学院,江苏南京,210009 |
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| 摘 要： | 采用粉末冶金法制备了两种不同成分的基体合金及S iC颗粒增强镁基复合材料。采用LMA-1型低频力学弛豫谱仪对基体合金及复合材料的阻尼性能随频率、振幅及温度的变化关系进行了研究。结果表明,Mg-1.01%Zn-0.86%Zr合金的阻尼性能优于Mg-2.51%Zn-0.63%Zr合金的;S iC颗粒的加入使S iCp/Mg-1.01%Zn-0.86%Zr基复合材料的阻尼性能有所提高;基体合金及复合材料的内耗值均随频率的增加先急剧降低,随后趋于平缓;低应变振幅下阻尼性能受应变振幅影响较小,但在较高应变振幅下阻尼随应变振幅的增加而急剧增大;在200℃~250℃及350℃~400℃的温度范围内均出现内耗峰。
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| 关 键 词： | 粉末冶金法 镁基复合材料 SiC颗粒 阻尼性能 |
Research on the damping capacities of SiC particle reinforced magnesium matrix composites by power metallurgy |
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| RUAN Ai-jie,MA Li-qun,BIAN Ya-juan,PAN An-xia,DING Yi.Research on the damping capacities of SiC particle reinforced magnesium matrix composites by power metallurgy[J].Light Alloy Fabrication Technology,2010,38(3). |
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| Authors: | RUAN Ai-jie MA Li-qun BIAN Ya-juan PAN An-xia DING Yi |
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| Abstract: | SiC particle reinforced magnesium matrix composites with excellent damping capacity were prepared by power metallurgy.The variation relations of damping vs.frequency,strain amplitude and temperature of Mg-Zn-Zr alloy and SiCp/Mg-Zn-Zr magnesium matrix composites were investigated by LMA-1 low-frequency torsion pendulum system.The results showed that compared with Mg-2.51%Zn-0.63%Zr alloy,damping capacities of Mg-1.01%Zn-0.86%Zr alloy was better.The addition of SiC particle increased the damping capacity of ... |
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| Keywords: | power metallurgy magnesium matrix composite SiC particle damping capacity |
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