Structural optimization and wetting behavior of femtosecond laser-fabricated micro-cone arrays on marine steel;
: Shen, Kai; Li, Yi; Wu, Xia; Bai, Jingyuan; Zhao, Zhanyong; Yang, Ke; Giyasov, Shukhrat; Papageorgiou, Anastassios; Cai, Zhihui; Yuan, Guangyin; Morozova, Natalia Borisovna; Shi, Wenqing; Tie, Di
: N/A
: International Conference on Advanced Materials and Intelligent Manufacturing
Publisher: IOP Publishing
: 2026
Journal of Physics: Conference Series
: 2025 6th International Conference on Advanced Materials and Intelligent Manufacturing (ICAMIM 2025)
: 012075
: 3175
: 1742-6588
: 1742-6596
DOI: https://doi.org/10.1088/1742-6596/3175/1/012075
: https://doi.org/10.1088/1742-6596/3175/1/012075
: https://research.utu.fi/converis/portal/detail/Publication/523439793
To enhance marine equipment durability in harsh conditions, marine steel surfaces with high hydrophobicity are critical for anti-corrosion and self-cleaning, yet existing modification techniques lack stability, controllability, and consistency. Herein, 304 stainless steel substrates were processed via femtosecond laser to fabricate microcone arrays (spacings 150-350 μm, heights 150-350 μm), with systematic characterization of morphology, composition, crystal structure, and hydrophobicity. Results show regular micro-cones with smooth sidewalls (no slag), uniform element distribution, retained austenitic matrix, and minor edge oxidation, as confirmed by energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Hydrophobicity varied with structure, peaking at 116.37° contact angle and 22° rolling angle, driven by synergistic air entrapment, laser-induced roughness, and oxide layer low surface energy. This work establishes a reliable process-structure-performance correlation, aiding the design of hydrophobic marine steels with strong engineering potential.
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This work was supported by the National Natural Science Foundation of China (52171235 and
5241102867), Yangjiang Talent Revitalization Program (RCZX2023004), and Guangdong Ocean
University (YJR24003). We would like to thank the Analytical and Testing Center of Guangdong Ocean
University for providing testing equipment.
