High Temperature Tribological Properties of Cu-2Ni-5Sn-Graphite-PbO Self-Lubricating Composites

doi:10.16078/j.tribology.2018.01.011

	High Temperature Tribological Properties of Cu-2Ni-5Sn-Graphite-PbO Self-Lubricating Composites
	Wang, Jiangwen 1,2; Lu, Long 3; Meng, Junhu 2; Guo, Hongru 3; Wang, Jingbo 2; Wu, Youzhi 1
刊名	Mocaxue Xuebao/Tribology
	2018
卷号	38 期号:1 页码:84-92
关键词	Adhesives Copper oxides Friction Graphite Hematite Lead oxide Lubricating oils Materials testing apparatus Mechanical properties Plastic deformation Powder metallurgy Scanning electron microscopy Self lubricating composites Tribology Wear of materials Friction and wear Friction coefficients High temperature High temperature tribological properties Increasing temperatures Microstructure and mechanical properties Mild plastic deformation Tribological properties
ISSN号	10040595
DOI	10.16078/j.tribology.2018.01.011
英文摘要	Cu-2Ni-5Sn-Graphite-PbO self-lubricating composites were prepared by powder metallurgy. The microstructure and mechanical properties of the composites were examined by using X-ray diffraction, scanning electron microscopy and a universal material testing machine. And the tribological properties of the composites were investigated using a pin-on-disc friction testing configuration from room temperature to 500. The results indicate that the best comprehensive tribological properties were obtained for graphite+PbO composite of 8%. The addition of Ni enhanced the mechanical properties of the matrix. The friction coefficient of composites remained stable with the increase of temperature. The wear rates of the composites firstly slightly increased and then sharply increased with increasing temperature. At room temperature, the lubricating film was composed mainly of graphite and the main wear mechanism is mild plastic deformation and local peeling off. At 300, the improved tribological properties of the composites were attributed to the formation of a dense and lubricious film of graphite, PbO(Fe2O3)6 and Cu2O, the main wear mechanism was plastic deformation, local peeling off and adhesive wear. At 500, the composite lubricating film was composed of PbO(Fe2O3)6, graphite, Cu2O and CuO, and the main wear mechanism was the peeling off of the matrix of graphite surrounding area, peeling off caused by the plastic deformation and oxidative wear. © 2018, Science Press. All right reserved.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114584]
专题	材料科学与工程学院
作者单位	1.School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 2.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou; Gansu; 730000, China; 3.Lanzhou Industrial Research Institute, Lanzhou; Gansu; 730050, China
推荐引用方式 GB/T 7714	Wang, Jiangwen,Lu, Long,Meng, Junhu,et al. High Temperature Tribological Properties of Cu-2Ni-5Sn-Graphite-PbO Self-Lubricating Composites[J]. Mocaxue Xuebao/Tribology,2018,38(1):84-92.
APA	Wang, Jiangwen,Lu, Long,Meng, Junhu,Guo, Hongru,Wang, Jingbo,&Wu, Youzhi.(2018).High Temperature Tribological Properties of Cu-2Ni-5Sn-Graphite-PbO Self-Lubricating Composites.Mocaxue Xuebao/Tribology,38(1),84-92.
MLA	Wang, Jiangwen,et al."High Temperature Tribological Properties of Cu-2Ni-5Sn-Graphite-PbO Self-Lubricating Composites".Mocaxue Xuebao/Tribology 38.1(2018):84-92.