Investigation of Anticorrosive Performance of Oil-infused Slippery and Superhydrophobic Brass Surfaces by Laser Texturing

Brass is widely used in machinery, electronic appliances and emerging industries. The corrosion resistance of laser-induced superhydrophobic surface of brass needs to be improved. In recent years, bionic surface with slippery coating has attracted much attention because of its excellent corrosion inhibition performance. Here, we first prepared the superhydrophobic surface of brass by nanosecond laser ablation combined with fluoroalkyl silane modification, and then injected silicone oil into the prepared superhydrophobic matrix to obtain a slippery coating surface. PDP and EIS tests in 3.5 wt.% NaCl solution showed that the corrosion resistance of the slippery surface was better than that of the superhydrophobic surface. This study can play a certain role in promoting the development of metal anticorrosive coating and is of great significance in the preparation of slippery surface by laser induction, and provides a convenient and effective means for metal anticorrosion in the industrial field.