主盐浓度比对电沉积制备Ni-Cu-SiC复合镀层的摩擦学性能的研究

Study on Deposition Mechanism and Tribological Properties of Ni-Cu-SiC Composite Coatings Electrodeposited by Ionic Liquid

本文选择氯化胆碱-乙二醇类离子液体取代了传统电解液,采用复合电沉积技术在镁锂合金上成功地沉积了具有耐腐蚀性能的Ni-Cu-SiC复合镀层。实验结果表明,在主盐浓度比为c_(Cu)∶c_(Ni)=0.1∶0.15获得的复合镀层更加致密均匀,摩擦系数更小,磨损量较小。经硬脂酸改性后,所制备的Ni-Cu-SiC涂层接触角为150.7°,为镁锂合金制备功能表面提供一种新方法。

In this paper,choline chloride-glycol ionic liquid was selected to replace the traditional electrolyte,and a Ni-Cu-SiC composite coating with corrosion resistance was successfully deposited on the magnesium-lithium alloy by composite electrodeposition technology.The experimental results show that the composite coating obtained when the main salt concentration ratio is c_(Cu)∶c_(Ni)=0.1∶0.15 is more dense and uniform,the friction coefficient is smaller,and the amount of wear is smaller.After being modified by stearic acid,the prepared Ni-Cu-SiC coating has a contact angle of 150.7°,which provides a new method for preparing functional surfaces of magnesium-lithium alloys.