飞秒激光制备超疏水镍基合金及性能研究  

Femtosecond Laser Preparation and Properties of Superhydrophobic Nickel-Based Alloy

作　　者：林立峰 何秀权 章桥新[1] 余金桂[1] Lin Lifeng;He Xiuquan;Zhang Qiaoxin;Yu Jingui(School of Mechanical and Electronic Engineering,Wuhan University of Technology,Wuhan,Hubei 430070,China;Institute of Laser and Intelligent Manufacturing,Southcentral University for Nationalities,Wuhan,Hubei 430070,China)

机构地区：[1]武汉理工大学机电工程学院,北武汉430070 [2]中南民族大学激光与智能制造研究院,湖北武汉430070

出　　处：《应用激光》2022年第10期93-98,共6页Applied Laser

基　　金：国家自然科学基金(51210008)。

摘　　要：为了快速简便地在镍基合金表面制备微纳结构,实现超疏水性,采用飞秒激光加工并用氟硅烷修饰处理,成功在镍基合金表面实现了超疏水性,并对其耐腐蚀性、黏附性、自清洁性进行测试。试验结果表明,制备表面具有良好的超疏水性,其接触角为156.8°,滚动角为4.2°。不同的激光扫描间距对金属表面润湿性有显著影响,随着扫描间距5μm从增加到50μm,接触角从156.8°到121.7°变化,滚动角从4.2°到90°变化。电化学腐蚀试验表明,扫描间距为15μm时,耐腐蚀性能得到较好改善,自清洁试验显示水滴可以轻松带走表面灰尘。改变扫描间隔可以调控表面形貌达到超疏水性,并有效改善表面耐腐蚀性能。In order to quickly and easily prepare micro-nano structures on the surface of nickel-based alloys to achieve super-hydrophobicity, femtosecond laser processing and modification with fluorosilane were used to successfully achieve super-hydrophobicity on the surface of nickel-based alloys, and their corrosion resistance and adhesion, and its corrosion resistance, adhesion, and self-cleaning properties were tested. The experimental results show that the prepared surface has good superhydrophobicity, and its contact angle is 156.8° and the rolling angle is 4.2°. Different laser scanning distances have a significant effect on the wettability of the metal surface. As the scanning distance increases from 5-50 μm, the contact angle changes from 156.8°-121.7°, and the rolling angle changes from 4.2°-90°. Electrochemical corrosion experiments show that when the scanning distance is 15 μm, the corrosion resistance is better improved, and the self-cleaning experiment shows that water droplets can easily take away surface dust. Changing the scanning interval can control the surface morphology to achieve super-hydrophobicity, and effectively improve the surface corrosion resistance.

关 键 词：镍基合金 飞秒激光 超疏水 耐腐蚀性 自清洁 

分 类 号：O436[机械工程—光学工程]