| 孔隙度对湿式铜基摩擦材料摩擦磨损性能的影响 |
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| 引用本文： | 蒋世文,张兆森,严深浪,徐慧.孔隙度对湿式铜基摩擦材料摩擦磨损性能的影响[J].粉末冶金材料科学与工程,2012(1):109-114. |
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| 作者姓名： | 蒋世文 张兆森 严深浪 徐慧 |
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| 作者单位： | 中南大学粉末冶金国家重点实验室;中南大学材料科学与工程学院 |
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| 基金项目： | 国防基础研究资助项目(ZNDX2008195) |
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| 摘 要： | 采用不同的压制压力制备湿式铜基粉末冶金摩擦材料,借助扫描电镜及摩擦磨损试验机研究材料的孔隙度对其组织和摩擦磨损性能的影响。结果表明:当孔隙度小于25%时,高孔隙度材料具有更高且更加稳定的摩擦因数,当孔隙度超过25%时,摩擦性能不稳定;磨损量随孔隙度减小先减小后增大。对此湿式铜基摩擦材料,20%为其最佳的孔隙度,此时材料具有最佳的摩擦磨损性能。
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| 关 键 词： | 湿式铜基摩擦材料 孔隙度 摩擦磨损 |
Effect of porosity on the friction and wear performance of wet copper-based friction materials |
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| JIANG Shi-wen,ZHANG Zhao-sen,YAN Shen-lang,XU Hui.Effect of porosity on the friction and wear performance of wet copper-based friction materials[J].materials science and engineering of powder metallurgy,2012(1):109-114. |
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| Authors: | JIANG Shi-wen ZHANG Zhao-sen YAN Shen-lang XU Hui |
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| Affiliation: | 1.State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China; 2.School of Materials Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | The wet copper-based friction material was fabricated with different pressing pressure.The effect of porosity on the microstructures,mechanical properties and the properties of friction and wear of the materials were investigated by SEM and friction wear testing machine.The results indicate that high porosity material has higher and more stable friction coefficient when the porosity less than 25%.When the porosity is higher than 25%,the properties of friction will be instability;the wear decreases firstly and then increases with the porosity decreasing.So,there be the best of porosity(about 20%) which make the best performance for the wet copper-based friction materials. |
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| Keywords: | wet copper-based friction material porosity friction and wear |
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