Page 89 - 《摩擦学学报》2021年第1期

第 41 卷 第 1 期 摩 擦 学 学 报 Vol 41 No 1
2021 年 1 月 Tribology Jan, 2021

DOI: 10.16078/j.tribology.2020041

表面织构对管道内壁碳基涂层润湿性与

摩擦学性能影响

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1,3*
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王新宇 , 张帅拓 , 刘 建 , 鲁晓龙 , 隋旭东 , 郝俊英 , 刘维民 1
(1. 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;
2. 中国科学院大学，北京 100049;
3. 青岛市资源化学与新材料研究中心，山东 青岛 266000)
摘 要: 采用等离子体增强化学气相沉积技术在管道内表面沉积超厚类金刚石涂层(厚度不小于15 μm)，通过激光
织构和喷砂对管道内表面进行织构化处理，研究其对超厚类金刚石涂层摩擦学性能和储油的影响. 结果表明：在
PAO 10润滑下，调节织构化参数(设置不同的激光织构图案和喷砂压力)，可以使管道内壁类金刚石涂层与PAO
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10之间的润湿性和摩擦学性能达到最优. 载油高速旋转试验结果表明：经过2.06×10 Pa(30 psi)的喷砂压力和0.01 mm×
0.01 mm激光点阵处理的织构涂层具有最佳的储油性能，可以减少润滑油在实际工况中的爬升和外溢. 而图案为
0.01 mm×0.01 mm点阵的激光织构涂层具有最低的摩擦系数，避免了管状构件往复运动中可能出现的涂层损伤. 因
此，通过优化织构的密度和直径，可以提升管道内壁上超厚类金刚石涂层的储油和摩擦学性能.
关键词: 管道内壁涂层; DLC涂层; 表面织构; 储油; 摩擦学性能
中图分类号: TH117.3 文献标志码: A 文章编号: 1004-0595(2021)01–0086–09

Effect of Surface Texture on Wettability and Tribological
Properties of Carbon-Based Coatings on the

Inner Surface of Pipes

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WANG Xinyu , ZHANG Shuaituo , LIU Jian , LU Xiaolong , SUI Xudong ,
1*
HAO Junying , LIU Weimin 1
(1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese
Academy of Sciences, Gansu Lanzhou 730000, China
2. University of Chinese Academy of Sciences, Beijing 100049, China
3. Qingdao Center of Resource Chemistry and New Materials, Shandong Qingdao 266000, China)
Abstract: Diamond-like carbon (DLC) coating was deposited on the inner surface of the pipe by plasma enhanced
chemical vapor deposition technology, and the inner surface of the pipe was textured by laser surface texture and sand
blasting before and after depositing coatings. The morphology and structures of the DLC coatings were characterized by
Raman spectrum and field-emission scanning electron microscope (FE-SEM). The lubricant retention property and
tribological properties of the coating were analyzed by a tribometer. The results showed that the surface texture
improved the wettability and tribological properties of the DLC coatings by changing the laser texture patterns and
blasting pressure. In addition, we found that the DLC coating can be transformed into graphite with stratified structure
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by laser ablation. Specifically, the textured coatings with a blasting pressure of 2.06×10 Pa(30 psi) or a lattice of 0.01 mm ×
0.01 mm had the best lubricant retention property, while the surface texture with a lattice of 0.01 mm × 0.01 mm had the

Received 16 March 2020, revised 17 June 2020, accepted 24 June 2020, available online 28 January 2021.
*Corresponding author. E-mail:suixudong@licp.cas.cn, Tel: +86-931-4968236; E-mail: jyhao@licp.cas.cn.
The project was supported by the National Natural Science Foundation of China(51805515 and 51835012).
国家自然科学基金项目(51805515和51835012)资助.