Study on Preparation of Superhydrophobic Surface by Selective Laser Melting and Corrosion Resistance

Superhydrophobic surfaces are used in aerospace, medical equipment, transportation, household appliances and other fields due to their special interface characteristics. In this paper, a superhydrophobic surface is prepared by Selective Laser Melting (SLM) 3D-printed technology, comparing the effects of different post-treatment methods time on corrosion resistance, revealing root cause transition from hydrophilic superhydrophobic. The test results show that for samples not treated with fluoro-silane, microstructure adsorbs organic matter air reduces energy, which sample changing addition, resistance 3D-printed, polished, + modified, corroded analyzed. Among them, modified have longer corrosion, after placing outdoor natural conditions 60 days, contact angle water droplets 150.8°, still has properties excellent durability.