Femtosecond laser and spraying modified “armor-like” superhydrophobic surface for enhanced corrosion resistance of 45 steel
Source abstract
Abstract
This study addresses the limited corrosion resistance of 45 steel in marine environments by combining femtosecond laser ablation and spraying techniques to create an “armor-like” superhydrophobic micro/nanostructure on its surface. The laser ablation forms micrometer-sized circular patterns, followed by spraying polydimethylsiloxane and micro/nano-SiO2 mixture to achieve a superhydrophobic coating. The modified surface significantly enhances corrosion resistance. Experimental results show that, even after exposure to water flow and abrasion, the surface retains excellent superhydrophobicity and durability. Electrochemical tests and corrosion morphology analysis further confirm the protective effect. This work offers a novel solution for enhancing the corrosion resistance of 45 steel in harsh environments, providing an innovative approach to corrosion protection for metallic materials.
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Research context
OpenAlex topics: Surface Modification and Superhydrophobicity · Laser Material Processing Techniques · Fluid Dynamics and Heat Transfer
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Materials and Metallurgy, Guizhou University 1 , Guiyang 550025,
Guizhou Qiannan Economic College 2 School of Finance, , Qiannan 550600,
Funding
MOE |The Innovation and Entrepreneurship Theraining Program
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