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为改善Ti6Al4V表面的生物摩擦学性能,利用激光表面织构化技术在其表面制作仿鲨鱼皮形貌图案.以Zr O2/Ti6Al4V为摩擦副,在MRTR多功能摩擦磨损试验机上进行干摩擦和不同润滑环境下的球-盘往复直线摩擦学试验,并采用扫描电镜观察试样表面的磨痕形貌。结果表明:干摩擦下,仿鲨鱼皮形貌Ti6A14V的摩擦因子比未仿鲨鱼皮形貌的降低了0.035,降幅达70%;在不同润滑环境下,仿鲨鱼皮形貌Ti6A14V的摩擦因子,相比未仿鲨鱼皮形貌呈现不同程度的下降。试样干摩擦下主要发生磨粒磨损和粘着磨损,但随着润滑剂中透明质酸和γ-球蛋白浓度的增加,试样出现了腐蚀磨损。
In order to improve the bio-tribological properties of Ti6Al4V surface, the morphology of the shark sharkskin was made on the surface of the Ti6Al4V surface by using the laser surface texture technique.The dry friction and the difference of the friction and wear of the MRTR multi-purpose friction and wear tester were measured by using Zr O2 / Ti6Al4V as the friction pair. Lubrication environment under the ball - disc reciprocating linear tribological test, and the use of scanning electron microscopy to observe the surface morphology of the wear scar. The results show that under dry friction, the friction factor of Ti6A14V is reduced by 0.035, which is 70% lower than that of unmodified shark skin. Under different lubrication conditions, the friction factor, phase of Ti6A14V Shark skin than the non-imitation showed varying degrees of decline. Under dry friction, abrasive wear and adhesive wear mainly occurred. However, with the increase of hyaluronic acid and γ-globin concentration in the lubricant, the sample appeared corrosive wear.