【作者】 向军淮； 段先志； 陈范才； 李文魁；

【Author】 XIANG Jun-huai, DUANG Xian-zhi, CHEN Fan-cai, LI Wen-kui (Jiangxi Key laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China; School of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China)

【机构】 江西科技师范学院江西省材料表面工程重点实验室； 湖南大学化学化工学院；

【摘要】 对铝材表面制备的Ni-MoS2自润滑复合镀层的摩擦磨损机理及性能进行了研究。结果表明Ni- MoS2复合镀层与纯铝组成的摩擦副在实验条件下呈现明显的粘着磨损特征。当镀液中MoS2浓度在3- 11g／L时,所获得的Ni-MoS2复合镀层具有明显的耐磨减摩效果,其原因是摩擦副界面MoS2膜的生成及复合镀层硬度的提高。但当镀液中MoS2浓度超过 13g／L时,所获得的镀层由于硬度下降反而使粘着磨损加剧。即使在最佳工艺条件下,Ni-MoS2复合镀层耐磨料磨损性能较纯Ni镀层提高得也不多。相反,如果获得的复合镀层质量不佳,硬度较低,反而会使磨料磨损加剧。更多还原

【Abstract】 Fraction and wear mechanism and property of Ni-MoS2 self-lubricating composite coating prepared on the surface of aluminum were investigated. The results showed that the frictional pair combinations of Ni-MoS2 composite coating and pure aluminum present obvious wear characteristic of adhesion in the given experimental condition. When particle concentration of MoS2 in the bath is in the range of 3-11g/L, Ni-MoS2 composite coatings obtained present obvious effect of wear resistance and antifriction. That is due to the formation of in terfacial MoS2 film and hardness increase of composite coating. But when particle concentration of MoS2 in the bath is above 13g/L, the composite coatings obtained present higher wear rate of adhesion. Though under the optimum technological conditions, abrasive wear-resistance of the Ni-MoS2 composite coating increases only a little when compared with pure Ni coating. On the contrary, if the composite coatings obtained present relatively lower hardness, they will suffer a higher wear rate of adhesion.更多还原