Abstract
Superhydrophobic coating technology is a promising anticorrosion method for metals. In this paper, a simple composite electrodeposition technique is proposed, in which micron-sized B4C particles are added to the electrolyte to construct Ni-B4C composite coating which exhibits a unique micro-nano structure. The addition of B4C particles promotes the construction of rough structure and enhances the corrosion resistance of the coating. When the B4C content is 3 g/L, the contact angle of the coating modified using a low surface energy material, reaches 162.5 ± 2°. The coating exhibits an excellent barrier effect against the corrosive medium. The superhydrophobic coating (MB-3) displays excellent corrosion resistance, and the corrosion protection efficiency reaches 99.53% in 3.5 wt% NaCl solution. The corrosion current density of MB-3 is 7.95 × 10−8 A/cm2, which is three orders of magnitude lower than that of the pure Ni coating (MB-0). The addition of B4C promotes the growth of the coating, resulting in excellent shielding and stability.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
