1：Experimental Design and Method Selection:

The study uses a hybrid approach combining nanosecond laser ablation to create hierarchical micro/nano structures on aluminum surfaces, followed by chemical modification with AC-FAS to reduce surface free energy and achieve super-hydrophobicity. The rationale is to combine physical texturing and chemical treatment for rapid and stable surface properties.

2：Sample Selection and Data Sources:

1060 aluminum sheets (99.6% purity) cut into 20 mm × 20 mm samples were used. AC-FAS and other chemicals were purchased from suppliers.

3：6% purity) cut into 20 mm × 20 mm samples were used. AC-FAS and other chemicals were purchased from suppliers. List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: Equipment includes a nanosecond Ytterbium pulsed fiber laser system (IPG photonics), SEM (FEI Quanta 250 FEG), stylus profilers (Bruker Dektak), white light confocal microscope (Zeiss CSM700), EDS (Oxford instruments X-Max 80), XPS (Thermo Fisher Scientific Escalab 250Xi), high-speed camera (NAC HX-3E), contact angle instrument (AST VCA optima), and electrochemical workstation (CHI660D). Materials include aluminum sheets, AC-FAS, ethanol, acetone, sodium chloride, hydrochloric acid, sodium hydroxide, and distilled water.

4：Experimental Procedures and Operational Workflow:

Samples were polished and cleaned, then laser ablated with varying pitches (40-150 μm). After laser treatment, samples were washed and immersed in AC-FAS/ethanol solution for 2 hours, followed by drying. Wettability, morphology, chemistry, and corrosion resistance were characterized using the listed equipment.

5：Data Analysis Methods:

Data were analyzed using statistical methods for contact angle measurements, SEM and microscopy for morphology, EDS and XPS for chemistry, and Tafel extrapolation for corrosion parameters.