Preparation and Tribological Properties Research of NbSe2 Nanowires as Additive in Lubricating Oil

One dimensional nanostructure NbSe2 was synthesized by a solid-phase reaction method. And the micrographite was characterized by XRD and TEM. Adding different mass fraction ratios of NbSe2 to the lubricant, their tribological properties were evaluated using UMT-2 micro-tribometer. The worn surface morphologies were observed by SEM. And the lubricant tribological mechanism with NbSe2 adding was explored. The results show that lubricants containing the NbSe2 additives can effectively reduce the friction coefficient, especially under high load and high speed conditions. As NbSe2 increases, the friction coefficient decreases, the wear decreases and the carrying capacity of lubricating oil is improved. It is found that the effects are mainly produced by the unique closed structure, the lubricant film formation and nano-materials self-repair together.