不同晶型SiC_p对铜基粉末冶金摩擦材料摩擦磨损性能的影响  

Effect of Different Crystal SiC_p on Friction and Wear Properties of Copper-based PM Friction Materials

作　　者：姚萍屏[1] 樊坤阳[1] 孟康龙[1] 佘直昌[1] 丁莉[1] 

机构地区：[1]中南大学粉末冶金国家重点实验室,湖南长沙410083

出　　处：《润滑与密封》2011年第7期1-4,共4页Lubrication Engineering

基　　金：国家高新技术研究发展计划项目(2008AA03Z504);国家自然科学基金项目(50875264);粉末冶金国家重点实验室创新基金(32840102505);湖南省杰出青年基金项目(10JJ1009)

摘　　要：采用加压烧结法制备含有不同晶型SiCp的铜基粉末冶金摩擦材料，研究不同晶型SiCp对铜基粉末冶金摩擦材料摩擦磨损性能的影响。结果表明：不同晶型SiCp对铜基粉末冶金摩擦材料的摩擦磨损性能的影响不同。摩擦材料的摩擦因数随着β-SiCp加入量的增加而升高，当β-SiCp的质量分数超过6％时，在摩擦过程中材料和对偶发生严重磨损；α-SiCp含量对铜基粉末冶金摩擦材料的摩擦磨损性能影响不显著；当SiC颗粒的质量分数为2％～6％时，β-SiCp相比α—SiCp更适合作为摩擦组元用于铜基粉末冶金摩擦材料中。Copper-based PM friction materials containing different crystal SiCp were prepared by powder metallurgy （PM） pressure sintering process. The effects of different crystal SiCp on friction and wear properties of copper-based PM friction materials were investigated. The results show that different crystal SiCp has different effects on friction and wear properties of copper-based friction materials. The friction coefficient increases when the content of β-SiCp increases. When the β-SiCp weight Content is more than 6%, the friction materials and counterpart begin to suffer from severe wear. The effect of α-SiCp content on friction and wear properties of copper-based PM friction material is not obvious. When 2% ~ 6% of SiC particle is added, β-SiCp is more suitable to be used as friction component in copper-based PM friction materi- als.

关 键 词：SICP 晶型 铜基 粉末冶金摩擦材料 摩擦磨损 

分 类 号：TB332[一般工业技术—材料科学与工程] TH117.1[机械工程—机械设计及理论]