Abstract
Given an incomplete combustion of fuel, soot particles commonly exist in the engine lubrication system and are detrimental to the normal operation of the lubrication system. A new method to suppress the effect of soot particles was proposed in the present study. Magnetic MoS2 (M − MoS2) composite was prepared, and its tribological performance in polyalphaolefin (PAO) 6 mixed with biodiesel soot (BDS) particles were investigated. Furthermore, the tribological behavior of M − MoS2 in PAO 6 containing BDS with and without magnetic field were compared. The test results showed that the adding M − MoS2 alone was ineffective in reducing the soot-induced wear, whereas the wear was significantly reduced after applying an external magnetic field. The synergistic repair mechanism of M − MoS2 composites and a magnetic field on mitigating wear caused by BDS was analyzed by employing a series of surface characterizations.
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