宏观石墨颗粒对工业纯铝阻尼性能的影响
Influence of Macroscopic Graphite Particulates on Damping Properties of Commercially Pure Aluminum
摘 要
运用空气加压渗流技术制备了宏观石墨颗粒增强的工业纯铝金属基复合材料,在25～400 ℃温度范围和频率为0.5,1.0和3.0 Hz条件下在多功能内耗仪上测量了不同材料的内耗和相对动力学模量;用透射电子显微镜对材料的显微组织进行了观察;依据内耗测量和微观分析讨论了宏观石墨颗粒对工业纯铝阻尼行为的影响.结果表明:复合材料的阻尼性能随着宏观石墨颗粒体积分数的增加而增大,阻尼性能比致密工业纯铝提高了2~3倍.
内耗
石墨颗粒
工业纯铝
damping
internal friction
graphite particulate
commercially pure aluminum
Abstract
Macroscopic graphite particulate reinforced commercially pure aluminum metal matrix composites (MMCs) were prepared by pressure infiltration process.The damping characterization was conducted using a multifunction internal friction apparatus (MFIFA).The internal friction (IF) and relative dynamic modulus were measured at frequencies of 0.5,1.0 and 3.0 Hz in the temperature range of 25 to 400 ℃.The microstructure analysis was performed using TEM.Influence of macroscopic graphite particalates on damping properties was studied by the measurement of IF and microstructure analysis.The damping capacity of the composites was increased 2-3 folds with the increase of macroscopic graphite particulates volume fraction.The operative damping mechanisms in the macroscopic graphite particulate reinforced MMCs were discussed in light of internal friction measurements and microstructural studies.
中图分类号 TB331
所属栏目 材料性能及其应用
基金项目 江西省自然科学(青年)基金资助项目(0550050);江西省教育厅科研项目(13-3-B-04)
收稿日期 2007/9/7
修改稿日期 2008/1/8
网络出版日期
作者单位点击查看
备注魏健宁(1973-),男,甘肃天水人,副教授,博士.
引用该论文: WEI Jian-ning,OUYANG Wei-qiang,YU Jian-min,LI Gen-mei. Influence of Macroscopic Graphite Particulates on Damping Properties of Commercially Pure Aluminum[J]. Materials for mechancial engineering, 2008, 32(8): 60～63
魏健宁,欧阳卫强,余剑敏,李根梅. 宏观石墨颗粒对工业纯铝阻尼性能的影响[J]. 机械工程材料, 2008, 32(8): 60～63
被引情况:
【1】黄天成,魏健宁,潮兴兵,邹俊生,谢卫军, "宏观石墨颗粒增强工业纯铝基复合材料的阻尼性能",机械工程材料 34, 88-90(2010)
【2】王金香,彭小波,韩福生, "宏观石墨颗粒增强铜基形状记忆合金复合材料的阻尼行为",机械工程材料 36, 53-55(2012)
【3】魏健宁,江长双,徐高平,周利玲,谢卫军, "宏观孔对锌铝共析合金阻尼行为的影响",机械工程材料 35, 11-13(2011)
【4】魏健宁,赵磊,黄天成,胡孔刚,谢卫军,李根梅, "连续变温法测定多晶纯铝晶界内耗峰",机械工程材料 33, 17-19(2009)
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参考文献
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【2】Rohatgi P K,Murali N,Shetty H R.Improved machinability of graphite particle-aluminum alloy composites[J].Mater Sci Eng,1976,26:115-122.
【3】Zhang J,Perez R J,Gungor M N.In damping of multiphase inorganic materials[M].OH:AMS International,Materials Park,1993.
【4】Zhang J,Perez R J,Gupta M.Damping behavior of particulate reinforced 2519 Al metal matrix composites[J].Scripta Metall Mater,1993,28:91-96.
【5】Perez R J,Zhang J,Lavernia E J.Strain amplitude dependence of 6061 Al/graphite MMC damping[J].Scripta Metall Mater,1992,27(9):1111-1113.
【6】Perez R J,Zhang J,Gungor M N.Damping behavior of 6061 Al/Gr metal matrix composites[J].Metall Trans,1993,24A:701-712.
【7】Wei J N,Cheng H F,Zhang Y F.Effects of macroscopic graphite particulates on the damping behavior of commercially pure aluminum[J].Materials Science and Engineering,2002,A325:444-453.
【8】Wei J N,Li Y L,Song S H.Grain boundary peak in macroscopic graphite particulates reinforced Zn-Al metal matrix composite[J].Physica Status Solidia,2004,201:923-928.
【9】Granato A,Lücke K.Theory of mechanical damping due to dislocations[J].J Appl Phys,1956,27(6):583-593.
【10】Nowick A S,Berry B S.Anelastic relaxation in crystalline solids[M].New York :Academic Press,1972.
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