微结构与DLC薄膜耦合钛合金表面水润滑摩擦学特性研究

Using enhanced magnetron cathodic arc coating technology, the DLC coatings were deposited on the surfaces of biomimetic microstructures to form the coupling surface. The friction and wear properties of the biomimetic microstructures sliding against Si3N4 balls in water were investigated. The result showed that the friction coefficient of the coupling surfaces/Si3N4 tribopairs is far less than the surface of the biomimetic microstructures. The friction coefficient of the coupling surfaces decreased by 0.6 or so; The stable friction coefficient of the coupling surfaces was slightly lower than the uncoated surfaces, and 0.08 or so, while the groove coupling surfaces with the width of 250μm and the depth of 75μm showed the excellent tribological properties, and its stable friction coefficient was 0.075, The stable friction coefficient of the mesh coupling surfaces was slightly lower than the smoothed DLC surfaces.