The drawbacks of artificial fabrication methods of superhydrophobic surface including multistep operations, time‐consuming and fluorine‐containing chemicals employment lead to inefficient preparation, severe environmental pollution, and safety concerns, restricting the large‐scale manufacturing and promising applications. Herein, a fluorine‐free stearic acid‐based one‐pot hydrothermal strategy was employed to simultaneously achieve surface roughness and low surface energy, transforming the surface wettability from hydrophilicity to superhydrophobicity. The as‐fabricated superhydrophobic 5083 Al alloy surface exhibits excellent water‐droplet bouncing, ultralow surface adhesion force, and repeatable self‐cleaning ability. The electrochemical impedance spectroscopy results reveal that the impedance modulus value |Z|_0.01 Hz was remarkably improved, demonstrating a high‐efficiency corrosion resistance. We believe that the one‐pot fluorine‐free hydrothermal‐fabricated superhydrophobic surface can be considered as an efficient barrier against corrosive environments, and being beneficial for the functional applications of metallic materials.

中文翻译：

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一锅无氟超疏水表面，耐腐蚀和水滴弹跳

超疏水表面的人工制造方法的缺点包括多步操作，费时和含氟化学品的使用导致制备效率低下，严重的环境污染和安全问题，从而限制了大规模制造和有希望的应用。在此，采用了基于无氟硬脂酸的单锅水热法，以同时实现表面粗糙度和低表面能，将表面的润湿性从亲水性转变为超疏水性。制成的超疏水5083铝合金表面具有出色的水滴弹跳，超低的表面附着力和可重复的自清洁能力。电化学阻抗谱结果表明，阻抗模量| ž| _{0.01 Hz}显着提高，证明了高耐腐蚀性。我们认为，一锅法无氟水热加工超疏水表面可被视为抗腐蚀环境的有效屏障，并且有利于金属材料的功能应用。