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Facile fabrication of superhydrophobic brass surface for excellent corrosion resistance
Dominic J., Perumal G., ,
Published in Taylor and Francis Ltd.
Volume: 36
Issue: 6
Pages: 660 - 664
In this study, superhydrophobic surfaces were fabricated using 1H,1H,2H,2H-perfluorooctyltriethoxysilane monolayer deposition on thermally oxidized brass. The superhydrophobic surface showed a contact angle (CA) of 155° with a CA hysteresis of 3.5°. The corrosion behaviour of developed superhydrophobic surface was evaluated using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) studies in 3.5\% NaCl solution. The superhydrophobic surface showed exceptional corrosion behaviour with nearly 21 times higher corrosion resistance compared to as-received (AS) brass. The EIS analysis suggests the presence of Warburg impedance in the AS brass indicating diffusion phenomena, while superhydrophobic brass surface showed a reversed loop in the low-frequency spectra, signifying significantly delayed kinetics of the electrochemical system. The study provides a facile, promising means of developing highly corrosion-resistant surfaces in engineering materials. © 2020, © 2020 Institute of Materials, Minerals and Mining Published by Taylor & Francis on behalf of the Institute.
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Published in Taylor and Francis Ltd.
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