杨焜,宋进兵,林松盛,曾威.超音速火焰喷涂碳化钨与磁控溅射掺钨类金刚石膜复合涂层结构及性能[J].表面技术,2022,51(6):399-406, 415.
YANG Kun,SONG Jin-bing,LIN Song-sheng,ZENG Wei.Microstructure and Properties of Composite Coating Composed of HVOF-sprayed WC Coating and Magnetron Sputtering Deposited W-doped Diamond-like Carbon Film[J].Surface Technology,2022,51(6):399-406, 415 |
| 超音速火焰喷涂碳化钨与磁控溅射掺钨类金刚石膜复合涂层结构及性能 |
| Microstructure and Properties of Composite Coating Composed of HVOF-sprayed WC Coating and Magnetron Sputtering Deposited W-doped Diamond-like Carbon Film |
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| DOI：10.16490/j.cnki.issn.1001-3660.2022.06.039 |
| 中文关键词: 碳化钨涂层 掺钨类金刚石膜 显微结构 摩擦磨损 密封 |
| 英文关键词:tungsten carbide coating W-doped diamond-like carbon film microstructure friction and wear sealing |
| 基金项目:广东特支计划(2019BT02C629);广州市产学研协同创新重大专项“燃气轮机关键零部件表面处理及维修” |
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| Author | Institution |
| YANG Kun | National Engineering Laboratory of Modern Materials Surface Engineering Technology, Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510650, China |
| SONG Jin-bing | National Engineering Laboratory of Modern Materials Surface Engineering Technology, Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510650, China |
| LIN Song-sheng | National Engineering Laboratory of Modern Materials Surface Engineering Technology, Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510650, China |
| ZENG Wei | National Engineering Laboratory of Modern Materials Surface Engineering Technology, Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510650, China |
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| 中文摘要: |
| 目的 改善唇形油封与对磨旋转轴的密封效果，提高旋转轴的耐磨减摩性能，并延长唇形油封的使用寿命。方法 采用超音速火焰喷涂方法在TC4钛合金试样上制备碳化钨涂层并进行磨削及抛光加工以获得光滑的表面，再利用离子源辅助磁控溅射方法制备掺钨类金刚石膜。采用扫描电子显微镜、摩擦磨损试验机和油封模拟试验台等手段对复合涂层的显微结构、摩擦磨损和密封性能进行系统表征。结果 复合涂层中的超音速火焰喷涂碳化钨涂层显微结构均匀，碳化钨含量梯度变化的掺钨类金刚石膜厚度约为2.1~2.3 μm。与超音速火焰喷涂碳化钨涂层相比，复合涂层与F223–15橡胶和石墨的摩擦因数及磨损量均有一定程度的降低，油封模拟试验中润滑油泄漏量显著减少，唇形油封唇口的磨损量更低，但密封试验后旋转轴表面磨痕中部DLC出现局部脱落迹象。结论 超音速火焰喷涂碳化钨与磁控溅射掺钨类金刚石膜复合涂层具有优异的耐磨减摩作用，唇形油封的密封效果得到显著加强，具有作为唇形油封对磨转动部件表面强化涂层的潜力。 |
| 英文摘要: |
| In order to improve the sealing effect between the lip seal and the grinding rotating shaft, and to enhance the wear resistance and anti-friction performance of the rotating shaft, and also to extend the service life of the lip seal, tungsten carbide coating is fabricated on the TC4 substrate by HVOF. Followed by the grinding and polishing processing to get the smooth surface, the W-doped diamond-like carbon film (W-DLC) is deposited by ion source assisted magnetron sputtering in this study. The microstructure, friction and wear, and sealing properties of the composite coating are evaluated by scanning electron microscope, tribometer and oil seal simulation test bench, respectively. According to the results, the HVOF-sprayed tungsten carbide layer has a uniform microstructure, the thickness of the W-DLC film with a transition from tungsten carbide content gradient is approximately 2.1-2.3 μm. Compared with the HVOF-sprayed WC coating, both of the friction coefficient and wear weight loss between the composite coating and F223-15 rubber or graphite abrasive parts are reduced to a certain extent, the leakage of lubricating oil is significantly reduced as well, and less abrasion is found for the lip seal. However, local spallation of the W-DLC film is found at the centre of the wear track on the shaft surface after the sealing test. Consequently, the composite coating has excellent wear resistance and antifriction performance, the sealing effect is also significantly strengthened. It has the potential as the protective coating for the grinding rotating shaft to be used in conjunction with the lip seal. |
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