Abstract
Molybdenum dialkyldithiocarbamate (MoDTC) is widely used as a friction modifier in engine lubricating oil. Under MoDTC lubrication, the friction and wear behaviors of tungsten-doped diamond-like carbon (W-DLC) films annealed at 100–400 °C were discussed and evaluated using scanning electron microscopy (SEM), atomic force microscopy (AFM), and Raman spectroscopy. Under (polymerized alpha olefin) PAO + MoDTC lubrication, the coefficient of friction of all samples decreased, but the wear rates of the W-DLC films annealed at 300 °C increased significantly. By interacting with zinc dialkyldithiophosphate (ZDDP), the wear rates of W-DLC films annealed at different temperatures declined significantly owing to the formation of dense phosphate tribofilms on the worn surfaces.
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Acknowledgements
This research was financially supported by the National Natural Science Foundation of China (Nos. 51875537 and 41872183), the Pre-Research Program in National 14th Five-Year Plan (No. 61409230614) and the Fundamental Research Funds for the Central University (No. 2652018094).
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Shaojun ZHANG. She got her M.S. degree in mechanical engineering in 2020 at China University of Geosciences (Beijing). After then, she became a Ph.D. student at the same university. Her research interests include lubricating additives and carbon-based films.
Lina ZHU. She got her Ph.D. degree in 2014 at China University of Geosciences (Beijing). She is an associate professor at China University of Geosciences (Beijing). She has authored or co-authored more than 80 journal papers. Her research interests are lubricating additives and surface engineering.
Yanyan WANG. She got her Ph.D. degree in 2021 at China University of Geosciences (Beijing). Her research interests include lubricating additives and carbon-based films.
Jiajie KANG. He got his Ph.D. degree in 2013 at China University of Geosciences (Beijing). He is a professor at China University of Geosciences (Beijing). He has authored or co-authored more than 100 journal papers. His research interests are lubricating additives and thermal spray coatings.
Haidou WANG. He received his Ph.D. degree in material processing engineering from Tsinghua University in 2003. He joined the Army Academy of Armored Forces from then on. He is a professor and the director of the National Engineering Research Center for Mechanical Product Remanufacturing. His current research areas cover the surface engineering, remanufacturing and tribology, especially in service life evaluation of surface coatings and solid film lubrication.
Guozheng MA. He got his Ph.D. degree in 2014 at the National Key Laboratory for Remanufacturing at Academy of Armored Forces, China. He is currently an associate researcher and a master tutor. He has authored or co-authored more than 100 journal papers, and obtained more than 20 invention patents and 5 provincial or ministerial awards. He was supported by the Yong elite scientists sponsor ship program in 2016 by (China Association for Science and Technology) CAST and won “Wen shizhu’s Maple Leaf Award” in 2020. His research interests are surface engineering, remanufacturing, and tribology.
Haipeng HUANG. He got his M.S. degree in 2009 at China University of Geosciences (Beijing). He is a researcher at SINOPEC Lubricant Co., Ltd. He has authored or co-authored more than 20 journal papers. His research interests are lubricating additives, lubricants, and its application.
Guang’an ZHANG. He received his Ph.D. degree from Lanzhou University in 2008. After then, he works in the State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences. His research interest focuses on the tribological mechanism and application of carbon-based thin films.
Wen YUE. He got his Ph.D. degree in 2009 at China University of Geosciences (Beijing). He is a professor at China University of Geosciences (Beijing). He has authored or co-authored more than 150 journal papers. His research interests are lubricating additives and carbon-based thin films.
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Effects of annealing treatment on tribological behavior of tungsten-doped diamond-like carbon film under lubrication (Part 2): Tribological behavior under MoDTC lubrication
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Zhang, S., Zhu, L., Wang, Y. et al. Effects of annealing treatment on tribological behavior of tungsten-doped diamond-like carbon film under lubrication (Part 2): Tribological behavior under MoDTC lubrication. Friction 10, 1061–1077 (2022). https://doi.org/10.1007/s40544-021-0514-4
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DOI: https://doi.org/10.1007/s40544-021-0514-4