ISSN   1004-0595

CN  62-1224/O4

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炭纤维增强铜锡锌基复合材料的摩擦磨损性能研究

Study of Tribological Properties of Short Carbon Fiber Reinforced Cu-Sn-Zn Matrix Composites

  • 摘要: 采用粉末冶金法制备了炭纤维增强铜锡锌基复合材料(Cf/Cu-Sn-Zn)和ZQSn663锡青铜, 并对其力学性能和摩擦磨损性能进行了对比研究. 结果表明: 当炭纤维的体积分数φf≤12%时,Cf/Cu-Sn-Zn复合材料的力学性能高于ZQSn663锡青铜;Cf/Cu-Sn-Zn复合材料的比磨损率小于ZQSn663锡青铜,当炭纤维体积分数φf=12%时,复合材料的摩擦磨损性能最佳;在摩擦磨损过程中,Cf/Cu-Sn-Zn复合材料的磨损机制主要为粘着磨损,而锡青铜呈现出粘着磨损和磨粒磨损特征.

     

    Abstract: Short carbon fiber reinforced Cu-Sn-Zn matrix composites and bronze with composition of Cu,6%Sn,6%Zn and 3%Pb(663 bronze) were prepared by powder metallurgy method.Their mechanical properties and tribological performance were investigated as a comparison.Experiments indicated that wear rate and friction coefficient of composites were lower than that of bronze, and when volume fraction of carbon fiber was no more than 12%,mechanical performance of the composites was prior to that of the bronze.SEM observation indicated that dominant wear mechanism of the composites was adhesive wear,while that of 663 bronze was adhesive wear and abrasive wear.

     

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