Hydrophobicity of periodic structures on 7075 aluminum alloy surfaces induced by femtosecond laser

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-07-08 DOI:10.1016/j.matlet.2025.139074

Si Li, Kai Zhang, Tianqi Chen, Weijun Liu

引用次数: 0

Abstract

Femtosecond lasers were used to induce periodic surface structures on 7075 aluminum alloy, with wettability investigated by varying the scanning speed to create structures of different periods. Results showed that under specific conditions, laser induced periodic surface structures (LIPSS) could switch the material’s surface from hydrophilic to hydrophobic. As the scanning speed increased, hydrophobicity rose, with the static contact angle reaching a maximum of 162°, indicating a superhydrophobic state. This shows that LIPSS can enhance the hydrophobicity of 7075 aluminum alloy, boosting its application value in fields like aerospace and automotive manufacturing.

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飞秒激光诱导7075铝合金表面周期性结构的疏水性

利用飞秒激光在7075铝合金表面诱导出周期性结构，并通过改变扫描速度产生不同周期结构来研究其润湿性。结果表明，在特定条件下，激光诱导周期表面结构（LIPSS）可以使材料表面由亲水性转变为疏水性。随着扫描速度的增加，疏水性增加，静态接触角最大达到162°，呈现超疏水状态。这表明LIPSS可以增强7075铝合金的疏水性，从而提升其在航空航天和汽车制造等领域的应用价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive