镍基涂层/碳基薄膜复合体系磨蚀行为  

Tribocorrosion Behavior of Ni-based Coating and Carbon-based Film Composite System

作　　者：任伟 李文生[1] 马勤[1] 何东青 张广安[2] 尚伦霖 李旭强 翟海民 Ren Wei;Li Wensheng;Ma Qin;He Dongqing;Zhang Guang’an;Shang Lunlin;Li Xuqiang;Zhai Haimin(State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals,Lanzhou University of Technology,Lanzhou 730050,China;State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China)

机构地区：[1]兰州理工大学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

出　　处：《稀有金属材料与工程》2020年第4期1379-1387,共9页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51674130);国家重点研发计划国际科技合作项目(2016YFE0111400);甘肃省国际科技合作特派员计划(17JR7WA017);甘肃省重点研发计划项目(17YF1WA159)。

摘　　要：利用非平衡磁控溅射技术在316L不锈钢基底和316L不锈钢基底喷焊Ni60C涂层表面分别制备a-C、a-C:H、a-C:Cr3种类金刚石碳基(DLC)薄膜,对比分析了不同防护体系在5%H2SO4(质量分数)溶液中的耐磨蚀性能。结果表明:较单层DLC薄膜,Ni60C/DLC复合体系膜-基结合强度大幅提高,腐蚀磨损性能显著改善,其摩擦系数在0.05~0.14之间,腐蚀磨损率在0.66×10^-8~5.7×10^-8 mm^3/N·m之间。Ni60C涂层作为硬质支撑层提高了薄膜的承载能力,且有效抑制了腐蚀摩擦过程中碳基(DLC)薄膜的石墨化进程,提高了Ni60C/DLC复合体系耐磨蚀性能。Three kinds of diamond-like carbon(DLC)-based films of a-C,a-C:H and a-C:Cr were deposited by unbalanced magnetron sputtering technique on 316 L steel and Ni60C spray-welding coating on 316 L steel.Tribocorrosion resistance in 5%(mass fraction)sulfuric acid solution of two different protective systems was investigated.The results indicate that the carbon-based films deposited on Ni60 C spray-welding coating show a significant improved adhesion and wear resistance compared with the one deposited on 316 L.The friction coefficient and corrosion wear rate of the DLC films deposited on Ni60C spray-welding coatings are 0.05~0.14 and 0.66×10^-8~5.7×10^-8 mm^3/N·m,respectively.The improvement of abrasion resistance of composite system is attributed to the Ni60C spray-welding coating as a hard support layer which can improve the bearing capacity of the DLC films,and the graphitization process of DLC films in the process of tribocorrosion test is effectively inhibited.

关 键 词：喷焊 Ni60C涂层 磁控溅射 类金刚石碳基薄膜 腐蚀磨损 

分 类 号：TH117.1[机械工程—机械设计及理论]