短碳纤维增强铜合金复合材料的摩擦磨损机理研究  

STUDY ON ABRASION MECHANISM OF SHORT CARBON FIBER REINFORCED Cu ALLOY MATRIX COMPOSITES

作　　者：夏龙[1] 张文丛[1] 徐金城[2] 

机构地区：[1]哈尔滨工业大学威海材料科学与工程学院,威海264209 [2]兰州大学材料科学系,兰州730000

出　　处：《粉末冶金工业》2009年第3期17-23,共7页Powder Metallurgy Industry

摘　　要：采用冷压烧结方法制备了碳纤维增强铜合金复合材料(Cf/Cu-Sn-Zn)和ZQSn663锡青铜。对摩擦磨损性能进行了对比研究,并对磨损机理进行了讨论。实验结果表明,Cf/Cu-Sn-Zn复合材料的磨损率和摩擦系数低于ZQSn663锡青铜。当碳纤维体积含量达到12%时,复合材料的摩擦磨损性能达到最佳。SEM和EDS分析结果表明,ZQSn663锡青铜的磨损机制主要是黏着磨损。Cf/Cu-Sn-Zn复合材料的磨损是黏着磨损和氧化磨损共同作用的结果。Short carbon fiber reinforced copper alloy matrix composites and bronze with composition of Cu,6%Sn,6%Zn and 3%Pb（663 bronze）were prepared by cold pressing and sintering methods. The tribological performance was investigated. The results indicate that wear rate and friction coefficient of the Cf/Cu-Sn-Zn composite were lower than that of 663 bronze. SEM and EDS indicate that the dominant wear mechanism for 663 bronze was adhesive wear, while for Cf/Cu-Sn-Zn composites was adhesive wear accompanied by oxidative wear.

关 键 词：碳纤维 铜合金 粉末冶金 磨损机理 

分 类 号：TB331[一般工业技术—材料科学与工程]