Abstract: Surface texturing is a technology to produce certain patterns of defined size,shapes and arrays on the surfaces of friction pairs,and it has been proven to be effective in enhancing the tribological performance of the friction pairs.As suitable geometrical parameters of surface texture can significantly improve the tribological performance of mechanical components,the optimal design of the surface texture under hydrodynamic lubrication has become the research focus of the scholars at home and abroad.In this paper,by analyzing the current researches on the surface texturing,the morphology and mechanism of the surface texture are introduced in detail.Then,the influences of the shape,direction,parameters,distribution,roughness of the surface texture as well as the velocity and the load on the hydrodynamic lubrication performance of the textured surface are discussed,and the state-ofthe- art research situation of the hydrodynamic lubrication theory of the surface texture is summarized.Finally,both the problems existing in current surface texturing and the development orientation are pointed out.

Key words: surface texture, fluid hydrodynamic lubrication, friction, cavitation, research progress