Page 15 - 《摩擦学学报》2021年第3期

第 41 卷 第 3 期 摩 擦 学 学 报 Vol 41 No 3
2021 年 5 月 Tribology May, 2021

DOI: 10.16078/j.tribology.2020171

Cu663合金表面石墨-铜三维复合润滑层的

构筑与摩擦学性能研究

黄国威 , 樊舒凯 , 李 婷 , 孙 涛 , 樊恒中 , 苏云峰 , 宋俊杰 2
1
1*
1
2*
2
2
(1. 兰州理工大学材料科学与工程学院 省部共建有色金属先进加工与再利用国家重点实验室，甘肃 兰州 730050;
2. 中国科学院兰州化学物理研究所 固体润滑国家重点实验室，甘肃 兰州 730000)
摘 要: 借助激光微加工技术，将柔性石墨纸加工成规则排列的多孔结构，利用多孔柔性石墨纸在Cu663合金表面
构筑石墨-铜三维复合润滑层结构. 分别考察了表面石墨-铜三维复合润滑层在干摩擦和海水腐蚀环境下的摩擦学
性能，并揭示了摩擦磨损机理和腐蚀机理. 结果表明：该三维复合润滑层结构具有优异的自润滑性能，且通过改变
纹理图案和尺寸参数可有效调控其摩擦学性能. 当Cu663合金表面三维复合润滑层石墨表面密度为50%时，干摩擦
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条件下的摩擦系数和磨损率分别为0.14 ± 0.01和(5.10 ± 1.33) ×10 mm /(Nm)，相较于无润滑层的Cu663样品摩擦系
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数0.53和磨损率(2.97 ± 0.57) ×10 mm /(Nm)分别降低73%和2个数量级. 在海水腐蚀环境中，表面石墨-铜三维复合
润滑层的铜与石墨纸界面产生微弱电极，对三维复合润滑层的腐蚀摩擦性能起到至关重要的作用.
关键词: 柔性石墨纸; 表面复合润滑层; 摩擦磨损; 干摩擦; 海水腐蚀环境
中图分类号: TH117 文献标志码: A 文章编号: 1004-0595(2021)03–0304–12

Construction of Graphite-Copper 3-D Composite Lubricating

Layer on Cu663 Alloy Surface and its Tribological Performances

1* 1 1 2 2* 2 2
HUANG Guowei , FAN Shukai , LI Ting , SUN Tao , FAN Hengzhong , SU Yunfeng , SONG Junjie
(1. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of
Technology, Gansu Lanzhou 730050, China
2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences,
Gansu Lanzhou 730000, China)
Abstract: A surface composite-lubrication structure was constructed on the surface of Cu663 alloy using flexible
graphite paper textured by laser micromachining technology. Tribological properties, wear and corrosion mechanisms
were investigated under dry and seawater conditions. Results indicated that the composite-lubrication structure exhibited
excellent self-lubricating properties, and the structural parameters (texture types and geometrical parameters)
significantly influenced the friction coefficient and wear rate of the composition-lubrication structure. The composite-
lubrication structure showed the optimal tribological properties when the graphite content reached 50%. The friction
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coefficient and wear rate decreased to 0.14 ±0.01 and (5.10 ±1.33) ×10 mm /(Nm) respectively, which were nearly
73% and two orders of magnitude lower than those of copper alloy. Under seawater environment, the formation of

Received 10 August 2020, revised 14 September 2020, accepted 27 September 2020, available online 28 May 2021.
*Corresponding author. E-mail: huang_guow@163.com, Tel: +86-931-2976688; hzhfan@licp.cas.cn, Tel: +86-931-4968833.
The project was supported from the National Natural Science Foundation of China (51902317), the National Key Research and
Development Project (2017YFB0308300) and the State Key Laboratory of New Ceramic and Fine Processing Tsinghua University
(KF201911).
国家自然科学基金项目(51902317)、国家重点研发计划(2017YFB0308300)和新型陶瓷与精细工艺国家重点实验室课题
(KF201911)资助.