Friction Characteristics of Textured Surface Based on Hydrodynamic Lubrication Effect
In order to explore the wear resistance of the new titanium alloy Ti15Mo7Zr15Ta1.00Si artificial hip joint prosthesis,based on the average Reynolds equation,a circular and elliptical textured joint surface hydrodynamic lubrication model was es-tablished,and the model was discretized using the finite difference method.MATLAB software iteratively solves it,and obtains the pressure distribution and surface friction coefficient of the textured joint in the calculation area.Using laser processing technology to prepare surface texture with a certain surface coverage and depth on titanium alloy Ti15Mo7Zr15Ta1.00Si,using a friction and wear testing machine to simulate the walking environment of the human body,and conduct friction and wear tests under the condition of bovine serum lubrication.The results show that the surface of the titanium alloy Ti15Mo7Zr15Ta1.00Si artificial hip joint prosthesis with a certain parameter texture array can achieve a certain anti-friction effect;the long axis vertical arrange-ment θ=0 elliptical micro The pit texture has the best anti-friction effect.
Artificial JointSurface TextureTitanium AlloyFriction And WearHydrodynamic Lubrication
万方数据
维普
