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铜和石墨对铁基含油自润滑复合材料机械及摩擦学性能的影响
引用本文:宁莉萍,王静波,等.铜和石墨对铁基含油自润滑复合材料机械及摩擦学性能的影响[J].摩擦学学报,2001,21(5):335-339.
作者姓名:宁莉萍  王静波
作者单位:中国科学院兰州化学物理研究所
摘    要:采用粉末冶金工艺制备了铁基含油自润滑复合材料,考察了Cu与石墨的含量对铁基含油自润滑复合材料的机模样性能、摩擦学性能及组织结构的影响,并利用X射线衍射仪、扫描电子显微镜及光学显微镜等对材料的组分、显微组织形态和结构以及磨损表面形貌等进行了系统的观察和分析,结果表明:添加适量Cu的Fe-Cu二元系材料的机械性能和摩擦学性能明显优于Fe系材料,这主要是因为Cu的加入改变了材料的微观结构。添加适量石墨的Fe-Cu-石墨三元系材料比Fe-Cu二元系材料具有更优异的摩擦学性能,但机械性能有所下降,这主要是由于石墨与油的协同润滑效应和石墨的加入改变了材料的微观结构所致。

关 键 词:铁基自润滑复合材料  微观结构  机械性能  摩擦学性能    石墨  粉末冶金
文章编号:1004-0595(2001)05-0335-05
修稿时间:2001年1月3日

Effect of Copper and Graphite on the Mechanical and Tribological Properties of Fe-based Oil-containing Self-lubricating Composites
NING Li ping,WANG Jing bo,OUYANG Jin lin,ZHANG Shu wei,MENG Jun hu.Effect of Copper and Graphite on the Mechanical and Tribological Properties of Fe-based Oil-containing Self-lubricating Composites[J].Tribology,2001,21(5):335-339.
Authors:NING Li ping  WANG Jing bo  OUYANG Jin lin  ZHANG Shu wei  MENG Jun hu
Abstract:Fe based oil containing self lubricating composites were prepared by powder metallurgy process. The effect of Cu and graphite contents on the mechanical and tribological properties and the microstructure of the composites was investigated. The composition, microstructure, and mechanical and tribological properties of the composites were examined by means of X ray diffraction (XRD), scanning electron microscopy (SEM) and optical microscopy. The worn surface morphologies of the composites sliding against steel were also observed with a scanning electron microscope. As the results, Fe Cu binary composites show better mechanical and tribological properties than Fe based composites. This is attributed to the change of the microstructure of the composites in the presence of Cu. Moreover, Fe Cu graphite composites have better tribological behavior than the Fe Cu composites, though the introduction of graphite leads to a slight decrease of the mechanical strength of the composites. This is attributed to the change of the microstructure of the composite in the presence of graphite and the synergistic lubrication effect of graphite and oil.
Keywords:Fe  based self  lubricating composites  microstructure  mechanical properties  tribological behavior
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