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以粒度为50 ~ 70μm的铜包石墨(Graphite-65% Cu质量分数,下同)复合粉体为原料,采用大气等离子喷涂设备在316不锈钢基体上制备了铜-石墨复合涂层.运用场发射、能谱、X射线衍射等手段对涂层显微结构进行了表征,并利用UMT球-盘式摩擦磨损试验机探讨了室温大气环境下铜-石墨复合涂层的摩擦学性能.结果表明,Graphite-65% Cu复合涂层结构致密,与不锈钢基材结合牢固;石墨在涂层中分布均匀;物相组成主要为C,Cu和Cu2O三相;摩擦副间石墨转移膜的形成是涂层低摩擦系数的主要原因.不同载荷和速率条件下所得涂层摩擦系数在0.03~0.15间.粘着磨损是主要磨损机制.

参考文献

[1] S. F. Moustafa;S. A. El-Bardy;A. M. Sanad;B. Kieback .Friction and wear of copper-graphite composites made with Cu-coated and uncoated graphite powders[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2002(7/8):699-710.
[2] A. Guillet;E.Y. Nzoma;P. Pareige .A new processing technique for copper-graphite multifilamentary nanocomposite wire: Microstructures and electrical properties[J].Journal of Materials Processing Technology,2007(26):50-57.
[3] X. C. Ma;G. Q. He;D. H. He;C. S. Chen;Z. F. Hu .Sliding wear behavior of copper-graphite composite material for use in maglev transportation system[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2008(7/8):1087-1092.
[4] Jaroslav Kovacik;Stefan Emmer;Jozef Bielek;L'ubomir Kelesi .Effect of composition on friction coefficient of Cu-graphite composites[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2008(3/4):417-421.
[5] YASAR I;CANAKCI A;ARSLAN F.The effect of brush spring pressure on the wear behavior of copper-graphite brushes with electrical current[J].Tribology International,2007(40):1381-1386.
[6] MA W;LU J;WANG B.Sliding friction and wear of Cugraphite against 2024,AZ91 D and Ti6Al4V at different speeds[J].Wear,2009(266):1072-1081.
[7] 吴子健;吴朝军;曾克里.热喷涂技术与应用[M].北京:机械工业出版社,2006
[8] 武建军;曹晓明;温鸣.现代金属热喷涂技术[M].北京:化学工业出版社,2007
[9] 余泉茂.石墨表面化学镀铜新方法[J].材料保护,2007(09):25-27.
[10] 姜魁光,高荣杰,翟继伟,孙明志.天然鳞片石墨粉的化学镀铜工艺[J].机械工程材料,2009(12):46-49.
[11] 田建华,陈建,李春林.石墨粉表面化学置换镀铜研究[J].表面技术,2009(06):67-69.
[12] W. Lu;V. S. Donepudi;J. Prakash;J. Liu;K. Amine .Electrochemical and thermal behavior of copper coated type MAG-20 natural graphite[J].Electrochimica Acta,2002(10):1601-1606.
[13] Ip SW.;Toguri JM.;Stephenson TF.;Warner AEM.;Sridhar R. .Wettability of nickel coated graphite by aluminum[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1998(1):31-38.
[14] 伊万?伊留克;汪一麟;陈耕.薄层摩擦学[M].北京:机械工业出版社,1986
[15] 张永振.材料的干摩擦学[M].北京:科学出版社,2007
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