Intuitive Analysis of the Microtribological Behavior of Copper-Coated Graphite-Graphite/Cu Composites with High Graphite Contents

被引:10
|
作者
Zhu, Linying [1 ]
Yi, Maozhong [1 ]
Ge, Yicheng [1 ]
Zhang, Bei [1 ]
Xie, Aolin [1 ]
机构
[1] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
来源
ACS OMEGA | 2022年 / 7卷 / 32期
关键词
TRIBOLOGICAL PROPERTIES; THERMAL-CONDUCTIVITY; MICROSTRUCTURE; WEAR; FRICTION; TEMPERATURE;
D O I
10.1021/acsomega.2c01276
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
To improve the combination of graphite and copper, the friction and wear of a graphite/copper composite with a high content of graphite (50 wt %), copper-coated graphite were used to modify it. To observe the distribution law of each phase in the material and the change of composite surface structure after the friction and wear experiment, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to characterize the micro-structure, friction film, debris, and friction cross section of the composites. The results show that the large particle size of copper-coated graphite is anisotropic in the material, which helps to form a friction film with a high graphite content on the contact surface. TEM images of the friction film and debris directly reflect the structure changes of graphite and copper during friction; under normal load and shear force, interlamellar detachment and interlamellar fracture of graphite occur, and its edge is folded and crimped, resulting in the loss of an ordered state in some regions, which results in the instability of crystal lattice and the transition from an ordered to disordered state of graphite, resulting in the (002) halo ring in FFT results. Severe plastic deformation and oxidation reactions occur in copper, and copper oxides are formed, forming a high-strength and smooth oxide film in the metal-rich area and improving the wear resistance of the material. TEM images of the friction section directly show that an inverted triangular deformation zone is formed on the surface of the sample after friction and wear experiments. The edge of the deformation zone is stepped, consisting of a drag zone and an accumulation zone, and the surface of the contact zone is covered by a carbon film.
引用
收藏
页码:28217 / 28225
页数:9
相关论文
共 50 条
  • [41] Tribological Behavior of Cu Matrix Composites Containing Graphite and Tungsten Disulfide
    Cao, Huiquan
    Qian, Zhiyuan
    Zhang, Lei
    Xiao, Jinkun
    Zhou, Kechao
    TRIBOLOGY TRANSACTIONS, 2014, 57 (06) : 1037 - 1043
  • [42] Effect of copper thickness and particle size of copper coated graphite on the tribological behaviors of PTFE composites
    Li, Fei
    Yan, Fengyuan
    Liu, Weimin
    Wu, Qi
    Run Hua Yu Mi Feng/Lubrication Engineering, 2000, (01): : 15 - 17
  • [43] Aluminum/SiC/Nickel-Coated Graphite Hybrid Composites and Their Wear Behavior
    Guo, M. L. Ted
    Tsao, Chi-Y A.
    LATEST DEVELOPMENT OF APPLIED MATERIALS TECHNOLOGY, 2012, 509 : 10 - 11
  • [44] Tribological behavior of aluminum/SiC/nickel-coated graphite hybrid composites
    Guo, MLT
    Tsao, CYA
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 333 (1-2): : 134 - 145
  • [45] Tribological behavior of CNTs-Cu and graphite-Cu composites with electric current
    Xu Wei
    Hu Rui
    Li Jin-shan
    Zhang Yong-zhen
    Fu Heng-zhi
    TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2012, 22 (01) : 78 - 84
  • [46] Fabrication and characterization of chromium-coated graphite fibers reinforced copper matrix composites
    Zhang, Haoming
    He, Xinbo
    Qu, Xuanhui
    PROGRESS IN MATERIALS AND PROCESSES, PTS 1-3, 2013, 602-604 : 3 - 7
  • [47] Study on Electromagnetic Properties of Graphite/Graphene/Silver-Coated Copper Powder Monolayer Coated Composites
    Liu, Yuanjun
    Han, Xiaohui
    Bao, Wenli
    Ding, Xiongwei
    Zhao, Xiaoming
    FIBRES & TEXTILES IN EASTERN EUROPE, 2023, 31 (01) : 83 - 90
  • [48] Friction and Wear Behavior of Copper Matrix Composites Reinforced with SiC and Graphite Particles
    Yongzhong Zhan
    Guoding Zhang
    Tribology Letters, 2004, 17 : 91 - 98
  • [49] Friction and wear behavior of copper matrix composites reinforced with SiC and graphite particles
    Zhan, YZ
    Zhang, GD
    TRIBOLOGY LETTERS, 2004, 17 (01) : 91 - 98
  • [50] Investigation on wear and corrosion behavior of Cu-graphite composites prepared by electroforming
    Zhao, Haijun
    Liu, Lei
    Wu, Yating
    Hu, Wenbin
    COMPOSITES SCIENCE AND TECHNOLOGY, 2007, 67 (06) : 1210 - 1217