Boundary Lubrication Mechanisms of Molybdenum Film by MoDTC and ZDDP Additives

Abstract:

Molybdenum (Mo) film is deposited by Ion Beam Assisted Deposition (IBAD) on the 316L steel substrate surface in this experiment. The micro structure and nanohardness of the film are tested by Scanning Electronic Microscope (SEM) and nanoindentation tester. The tribological behaviors of Mo film under ZDDP and MoDTC lubrication are evaluated by SRV test machine. The tribo-film formed on the worn surfaces is investigated by X-ray photoelectron spectroscopy (XPS) to find out the tribological mechanisms between the Mo film and the two additional additives. The result shows that Mo film not only has friction reduction property but also has wear assistant property under ZDDP and MoDTC lubrication. As element Mo has advantage on promoting the deposition of these two lubricating additives.

• Periodical: Applied Mechanics and Materials (Volumes 713-715)
• Pages: 2598-2605
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.713-715.2598
• Online since: January 2015
• Authors: Xing Liang Li*, Wen Yue, Song Wang, Shi Qian Zhao, Xiao Tong Hou, Tan Zhang, Jia Jun Liu
• Keywords: Friction, Ion Beam Assisted Deposition (IBAD), MoDTC, Molybdenum Film, Wear, ZDDP

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