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 (M_B-3) displays excellent corrosion resistance, and the corrosion protection efficiency reaches 99.53% in 3.5 wt% NaCl solution. The corrosion current density of M_B-3 is 7.95 × 10⁻⁸ A/cm², which is three orders of magnitude lower than that of the pure Ni coating (M_B-0). The addition of B₄C promotes the growth of the coating, resulting in excellent shielding and stability.

超疏水涂层技术是一种很有前途的金属防腐方法。本文提出了一种简单的复合电沉积技术，在电解液中加入微米级的B ₄ C 颗粒，构建具有独特微纳米结构的Ni-B ₄ C 复合涂层。B ₄ C粒子的加入促进了粗糙结构的构建，增强了涂层的耐腐蚀性能。当B ₄ C含量为3 g/L时，低表面能材料改性涂层的接触角达到162.5±2°。该涂层对腐蚀介质具有极好的阻隔作用。超疏水涂层（M _B-3) 显示出优异的耐腐蚀性能，在 3.5 wt% NaCl 溶液中的腐蚀防护效率达到 99.53%。M _B-3的腐蚀电流密度为7.95×10 ^-8  A/cm ²，比纯Ni涂层（M _B-0）低三个数量级。B ₄ C 的加入促进了涂层的生长，从而产生了优异的屏蔽性和稳定性。