作　　者： ; ; ;

机构地区： 中南大学材料科学与工程学院粉末冶金国家重点实验室

出　　处： 《湖南有色金属》 2003年第5期31-35,共5页

摘　　要： 对比研究了两种摩擦组元Fe和SiO2对铜基摩擦材料摩擦磨损性能的影响。结果发现:Fe和SiO2作为摩擦组元,二者的增摩效果不同。SiO2能较大的提高摩擦因数,却增加了材料的磨损量;Fe对提高摩擦因数的作用较小,但能有效地提高材料的耐磨性;当摩擦表面形成工作膜层后,SiO2提高摩擦因数的能力大大减小,表面膜填补了摩擦表面间的凹坑,减弱了SiO2磨粒的作用;Fe能参与表面工作膜的形成,铁氧化物的存在,改变了材料的摩擦磨损性能。 The friction and wear behavior of Fe and SiO2 in Cubased friction materials is compared in this paper.The results have shown that Fe and SiO2 are frictional particles and are used to raise the friction and wear properties of materials,but their effects are different.SiO2 can raise the friction coefficient more than Fe,but its wear volume increases.Fe can reduce the wear and make the coefficient stability.When a film is formed in the contact surface,the capability of SiO2 raising coefficient decreases.The film fills the gaps of the two surfaces of contact,this weakens the use of SiO2 in the process of friction.Fe has helps to form the film,its oxides can change the friction and wear properties of materials.

关 键 词： 铜基摩擦材料 摩擦磨损

领　　域： [航空宇航科学与技术] [航空宇航科学技术]