Experimental investigation of tribological performance of laser textured stainless steel rings

►Experiments show that the cavitation behavior is depended upon the speed. Speed plays an important role in determining the cavitation pressure. ►Compared with plain surface, the dimples will help to lower the coefficient of friction between the frictional surfaces. ►For the material used in this experiment (hardened 17-4 PH stainless steel), the dimples decrease the surfaces' resistant to wear. ►For a given dimple depth-to-diameter ratio, a higher dimple area density is beneficial in lowering the COF.