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《China Mechanical Engineering》 2017-01
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Fabrication and Properties of Superhydrophobic Surface on Aluminum Alloys Substrates by Brush Plating and Laser Processing Technology

LI Jing;ZHAO Yanhui;YU Huadong;DU Feng;WAN Yanling;College of Mechanical and Electric Engineering,Changchun University of Science and Technology;Department of Mechanical Engineering,Changchun Institute of Engineering;  
A superhydrophobic surface on aluminum alloys substrates was fabricated by brush plating and laser processing technology.The special microstructure surface was clearly uniformly covered by many convex hull and grooves arrangement.It is found that the sample surface has low adhesion performance without any chemical modified.The water contact angle of the fabricated surface is up to 156°and sliding angle is about 4.8°.In addition,the superhydrophobic surface has anisotropy(the direction of vertical groove and parallel groove)in sliding.The studies of the stability properties of superhydrophobic surface under different temperature environments show that,the contact angle of the superhydrophobic surface may also reaches 138°under the low temperature conditions.It has shown excellent anti-icing performance.The corrosion inhibition property of superhydrophobic coating in 3.5% NaCl solution is examined by Tafel curve measurement,and results show that,the special surface structure of aluminum alloy corrosion resistant value improves 3orders of magnitude.
【Fund】: 国家自然科学基金资助项目(51505039);; 吉林省科技发展计划资助项目(20150204018GX);; 吉林省高校科学技术研究资助项目(22215096);; 中国博士后科学基金资助项目(2014M551145);; 长春理工大学青年科学基金资助项目(2021000522)
【CateGory Index】: TG174.4
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