Tribological Properties and Worn Surface Analysis Generated by Sulfur- and Phosphorus-Free Molybdenum-Containing Water-Based Lubricant

Abstract:

The development of environment-friendly water-based lubricants has been paid more and more attention in modern manufacturing due to environmental concern and human health. In this paper, several water-soluble molybdenum-containing additives (WMCAs) were synthesized, and characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The tribological properties of WMCAs in water were evaluated by a four-ball tester. The results indicated that WMCAs exhibited beneficial effect on the anti-wear and friction-reducing properties of water under all tested concentrations, which could be attributed to organic nitrogen compound, iron oxides and MoO3 in WMCAs tribofilm.

• Periodical: Advanced Materials Research (Volumes 591-593)
• Pages: 1054-1057
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.591-593.1054
• Online since: November 2012
• Authors: Li Li Yan, Cheng Biao Wang, Wen Yue, Bo Xu
• Keywords: Molybdenum, Surface Analysis, Tribofilm, Water-Based Lubricant

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