铜基陶瓷强化摩擦材料的摩擦磨损性能  

A Study on the Friction and Wear Properties of Ceramic-Enhanced Cu-Based Composites

作　　者：符蓉[1] 杨淑芳[1] 宋宝韫[1] 高飞[1] 

机构地区：[1]大连交通大学材料科学与工程学院,辽宁大连116028

出　　处：《大连铁道学院学报》2006年第3期63-65,共3页Journal of Dalian Railway Institute

基　　金：国家863计划资助项(2003AA331190);国家自然科学基金资助项目(50375025)

摘　　要：采用粉末冶金技术，制备了铜基陶瓷强化摩擦材料．通过定速摩擦试验机，测试了摩擦压力、摩擦速度和干湿条件对材料摩擦磨损性能的影响．结果表明：在干摩擦条件下，系数大于0．3，摩擦系数稳定．摩擦压力在0．5—0．6MPa范围时，摩擦系数处于较低值．随摩擦压力的变化，磨损率变化不大．当摩擦速度为2000r／min时，摩擦系数最大．湿摩擦条件下摩擦系数低于干摩擦条件下的摩擦系数．Ceramic-enhanced Cu-based friction materials were fabricated by powder metallurgy. The friction and wear properties were measured by a friction tester under different pressures, friction speeds and wet/dry conditions. In the cases of dry friction, the friction coefficients are larger than 0. 3 and stable. As the friction pressure varies within 0.5 - 0.6 MPa, the fricition coefficient is lower, and the friction pressure has little effects on the wear rate. A maximum friction coefficient is found at the speed of 2 000 r/min. The materials exhibit lower friction coefficients under wet conditions than dry conditions.

关 键 词：铜基摩擦材料 制动 摩擦磨损 

分 类 号：TF125.9[冶金工程—粉末冶金]