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<p>Superhydrophobic surfaces have been shown to delay the uneven nucleation time of supercooled liquid droplets and promote the spontaneous detachment of droplets from the surface. The fabrication of superhydrophobic surfaces generally entails the establishment of distinctive microstructures and chemical modifications. However, it should be noted that slight mechanical friction may cause damage to the micro- and nano-structures characteristic of these surfaces, thereby leading to the loss of superhydrophobic properties. The present study focuses on titanium alloys due to their extensive utilization in the engineering field. It proposed the development of a functional surface with a titanium alloy microstructure that suppresses ice. The study employed a design based on laser processing technology to systematically generate a hierarchical micro-scale structure on the Ti–6Al–4V surface. A robust microstructure was combined with electrodeposition of a myristic acid-modified nickel to prepare superhydrophobic armored surface (SAS). The process was optimized by refining the surface microstructure, analyzing the phase composition, and evaluating the wettability. Results showed that the untreated surface froze in 30&#xa0;s at − 10&#xa0;°C, while the SAS surface delayed freezing to 633&#xa0;s. In addition, after 50 cycles of 1000 grit sandpaper abrasion and 20 cycles of thermal shock, the surface maintained WCA &gt; 135° and retained its hydrophobic properties. These results demonstrate that the designed microstructure possesses thermal shock and UV resistance, and may provide an effective strategy for anti-icing of Ti–6Al–4V surfaces.</p>

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Robust superhydrophobic Ti–6Al–4V surface via laser-electrodeposition with microstructure enhancement

  • 期刊论文

  • 发表日期：

    2026年1月21日

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  • Jing Cui,
  • Yucheng Xiang,
  • Guangfeng Yang

摘要

Superhydrophobic surfaces have been shown to delay the uneven nucleation time of supercooled liquid droplets and promote the spontaneous detachment of droplets from the surface. The fabrication of superhydrophobic surfaces generally entails the establishment of distinctive microstructures and chemical modifications. However, it should be noted that slight mechanical friction may cause damage to the micro- and nano-structures characteristic of these surfaces, thereby leading to the loss of superhydrophobic properties. The present study focuses on titanium alloys due to their extensive utilization in the engineering field. It proposed the development of a functional surface with a titanium alloy microstructure that suppresses ice. The study employed a design based on laser processing technology to systematically generate a hierarchical micro-scale structure on the Ti–6Al–4V surface. A robust microstructure was combined with electrodeposition of a myristic acid-modified nickel to prepare superhydrophobic armored surface (SAS). The process was optimized by refining the surface microstructure, analyzing the phase composition, and evaluating the wettability. Results showed that the untreated surface froze in 30 s at − 10 °C, while the SAS surface delayed freezing to 633 s. In addition, after 50 cycles of 1000 grit sandpaper abrasion and 20 cycles of thermal shock, the surface maintained WCA > 135° and retained its hydrophobic properties. These results demonstrate that the designed microstructure possesses thermal shock and UV resistance, and may provide an effective strategy for anti-icing of Ti–6Al–4V surfaces.