祁鹏浩,仝哲,刘奇,李月,董光能.表面织构化DLC涂层在脂润滑下的摩擦学性能研究[J].表面技术,2021,50(1):296-304.
QI Peng-hao,TONG Zhe,LIU Qi,LI Yue,DONG Guang-neng.Tribological Properties of DLC Coated Textured Surfaces under Grease Lubrication[J].Surface Technology,2021,50(1):296-304 |
| 表面织构化DLC涂层在脂润滑下的摩擦学性能研究 |
| Tribological Properties of DLC Coated Textured Surfaces under Grease Lubrication |
| 投稿时间：2020-06-17 修订日期：2020-09-27 |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.01.025 |
| 中文关键词: PFPE润滑脂 表面织构 类金刚石薄膜 摩擦 磨损 复合处理 |
| 英文关键词:PFPE grease surface texture diamond-like carbon film friction wear composite processing |
| 基金项目:国家自然科学基金(51705489);中物院创新发展基金(PY2019071) |
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| Author | Institution |
| QI Peng-hao | Key Laboratory of Modern Design and Rotor-Bearing System of Education Ministry, Xi'an Jiaotong University, Xi'an 710049, China |
| TONG Zhe | Key Laboratory of Modern Design and Rotor-Bearing System of Education Ministry, Xi'an Jiaotong University, Xi'an 710049, China |
| LIU Qi | Key Laboratory of Modern Design and Rotor-Bearing System of Education Ministry, Xi'an Jiaotong University, Xi'an 710049, China |
| LI Yue | Institute of Mechanical Manufacturing Technology, China Academy of Engineering Physics, Mianyang 621900, China |
| DONG Guang-neng | Key Laboratory of Modern Design and Rotor-Bearing System of Education Ministry, Xi'an Jiaotong University, Xi'an 710049, China |
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| 中文摘要: |
| 目的 研究表面织构与类金刚石薄膜(DLC)的复合处理方法，提高在GCr15钢盘表面在全氟聚醚(PFPE)润滑脂润滑下的摩擦学性能。方法 设计了四种表面织构与两种厚度的DLC涂层相结合，采用两种加工方法(在织构表面镀上DLC涂层，在DLC涂层上加工织构)，对GCr15金属盘表面进行处理。选用全氟聚醚润滑脂作为润滑介质，通过球-盘摩擦磨损实验，评价了在织构化和DLC涂层协同处理下，GCr15金属盘表面的摩擦学性能，并通过光学显微镜对磨痕形貌进行分析。结果 在四种织构表面中，微纹织构的减摩抗磨性能最好，与DLC膜的协同效果最好，在设定的实验条件下，得到的摩擦系数为0.1186，球斑直径为159.68 μm。DLC镀膜处理的试样中，3 μm厚的DLC膜试样在实验中的减摩性能较好，摩擦系数较低，但是磨斑尺寸较大，约为508.86 μm。在织构上镀DLC膜的复合处理方法，对于摩擦学性能改善不明显。在DLC薄膜上加工微纹织构的表面，表面织构化和DLC镀膜的耦合性能好，尤其在3 μm厚DLC膜上加工微纹织构的试样，实验得到的摩擦系数仅为0.099 46，磨斑尺寸为192.22 μm。结论 DLC涂层上加工微纹织构的复合处理方法，结合了微纹织构的储油特性和DLC的减摩特性，两种处理方法产生了正向协同作用，得到具有较好减摩和抗磨性能的摩擦表面。 |
| 英文摘要: |
| The work aims to study the composite treatment of surface texture and diamond-like film (DLC) to improve the tribological properties of GCr15 bearing steel plate lubricated with perfluoropolyether (PFPE) grease. Four kinds of surface textures were designed to be combined with DLC coatings of two thicknesses. Two texture processing methods (plating DLC coating on the textured surface and processing texture on the DLC coating) were used to treat the surface of GCr15 metal disc. With perfluoropolyether grease as the lubricating medium, and through the ball-disk friction and wear test, the tribological performance of the surface of the GCr15 metal disk under the synergistic treatment of texture and DLC coating was evaluated, and the wear surfaces were analyzed by optical microscope. Among the four textured surfaces, the micro-texture had the best anti-friction and anti-wear properties, and the best synergistic effect with the DLC film. Under the set experimental conditions, the friction coefficient was 0.1186 and the wear width was 159.68 μm. Among the two DLC plated surfaces, the samples with thicker DLC film (3 μm) had better friction reduction and lower friction coefficient, but the width of the wear scar on the ball was larger, which was about 508.86 μm. The composite treatment method of plating DLC film on the textured surface had no obvious improvement on the tribological performance. Processing micro-textured surface on DLC coating, the coupling between surface texture and DLC coating was good, especially when processing micro-textured sample on 3 μm thick DLC film, the experimental friction coefficient was only 0.099 46, and wear width on the ball was 192.22 μm. The composite treatment method of processing micro-texture on DLC coating combines the oil storage characteristics of micro-texture and the anti-friction characteristics of DLC, and the two treatment methods produce a positive synergistic effect, thus obtaining a friction surface with good anti-friction and anti-friction properties. |
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