[2021-Vol.18-Issue 5]Investigation of Anticorrosive Performance of Oil-infused Slippery and Superhydrophobic Brass Surfaces by Laser Texturing
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Journal of Bionic Engineering (2021) 18:1157–1167

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

Li Zhang1  · Chong Zhang1  · Jingrong Tang1  · Bo Hao1  · Mingyang Wang1 

Key Laboratory of Vibration and Control of Aeronautical Power Equipment of Ministry of Education, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China

Abstract 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 frst prepared the superhydrophobic surface of brass by nanosecond laser ablation combined with fuoroalkyl silane modifcation, 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 signifcance in the preparation of slippery surface by laser induction, and provides a convenient and efective means for metal anticorrosion in the industrial feld. 

Keywords Nanosecond laser · Superhydrophobic · Slippery surface · Corrosion resistance

Fig. 10Anticorrosion mechanism of the superhydrophobic surface

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