PTFE对复合镀层摩擦特性的影响

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PTFE对复合镀层摩擦特性的影响
Influence of PTFE on the Tribological Behavior of Composite Coatings

作　　者：周细应 李卫红 徐洲

Zhou Xiying1; 2 Li Weihong2 Xu Zhou2（1.School of Materials Engineering; Shanghai University of Engineering Science; Shanghai 200336; China; 2.School of Materials Science and Engineering; Shanghai Jiaotong University; Shanghai 200030; China）;

机构地区：上海工程技术大学材料工程学院 上海交通大学材料工程学院

出　　处：《润滑与密封》 CAS CSCD 2008年第8期 -页,共5页

Lubrication Engineering

基　　金：上海市科委纳米专项基金项目(0552nm035);; 上海市教委重点学科建设基金项目(J51402)

摘　　要：研究了PTFE添加量对Ni基电刷镀PTFE复合镀层的摩擦特性和磨损机制的影响。采用扫描电镜、X射线衍射仪和能谱仪分析了摩擦前后的磨损表面的形貌、组织和成分变化。结果表明TFE添加量对复合镀层的组织和摩擦特性有较大的影响。当PTFE体积分数为3%和4%时,复合镀层的摩擦因数最小;当PTFE体积分数为2%时,复合镀层的耐磨性最好。在磨损面上富含PTFE复合层的形成和面积随PTFE添加量的变化影响了复合镀层的摩擦特性及其磨损机制。

The tribological behaviors and wear mechanism of brush electroplated Ni-PTFE composite coatings with different PTFE addition were surveyed.The worn surface,coating microstructure and the compositional changes before and after wear test were characterized using scanning electron microscopy(SEM),X-ray diffraction(XRD)and energy-dispersive analysis of X-ray(EDAX).It is found that PTFE addition has significant influence on the microstructure and tribological property of the composite coatings.The composite coat...

关 键 词：电刷镀 Ni-PTFE 复合镀层 组织 摩擦与磨损
brush electroplating Ni-PTFE composite coatings microstructure friction and wear
分 类 号：TB302.3 [工业技术 > 一般工业技术 > 工程材料学 > 工程材料一般性问题 > 工程材料试验]

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