Zhu, C.; He, Z.; Xiong, L.; Li, J.; Wu, Y.; Li, L. Study on the Influence of the MoS2 Addition Method on the Tribological and Corrosion Properties of Greases. Lubricants2023, 11, 517.
Zhu, C.; He, Z.; Xiong, L.; Li, J.; Wu, Y.; Li, L. Study on the Influence of the MoS2 Addition Method on the Tribological and Corrosion Properties of Greases. Lubricants 2023, 11, 517.
Zhu, C.; He, Z.; Xiong, L.; Li, J.; Wu, Y.; Li, L. Study on the Influence of the MoS2 Addition Method on the Tribological and Corrosion Properties of Greases. Lubricants2023, 11, 517.
Zhu, C.; He, Z.; Xiong, L.; Li, J.; Wu, Y.; Li, L. Study on the Influence of the MoS2 Addition Method on the Tribological and Corrosion Properties of Greases. Lubricants 2023, 11, 517.
Abstract
MoS2 lithium-based grease is suitable for lubrication protection between bearings at high temperatures and loads due to its excellent tribological properties. However, there is little research on the influence of different addition methods of MoS2 additive on the tribology and corrosion properties of lithium grease. In this work, vegetable oil with low toxicity, high biodegradation rate, and low cost was selected as the base oil, lithium 12-hydroxystearate as the thickener, and MoS2 as the additive. The effects of different adding modes of MoS2 on the tribology and corrosion properties of lithium grease were studied. The experimental results showed that adding 0.01wt% MoS2 before thickening was more conducive to improving the tribological properties of lithium grease. The average friction coefficient was 0.034, and the average spot diameter was reduced by 0.16mm. After grinding and adding 0.01wt% MoS2, the corrosion inhibition efficiency of the steel sheet was as high as 96.97%. The main reason was that the longer stirring and grinding were conducive to the uniform distribution of MoS2 in the grease, and the protective film formed by MoS2 and GCr15-bearing steel improved the lubrication performance and corrosion inhibition performance of the friction system.
Keywords
MoS2; Lithium base grease; addition method; Friction; corro
Subject
Chemistry and Materials Science, Materials Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
