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Multiscale corrosion analysis of superhydrophobic coating on 2024 aluminum alloy in a 3.5 wt% NaCl solution

Published online by Cambridge University Press:  07 April 2020

Divine Sebastian ,
Chun-Wei Yao Open the ORCID record for Chun-Wei Yao [Opens in a new window]  and
Ian Lian
Divine Sebastian
Affiliation:
Department of Mechanical Engineering, Lamar University, Beaumont, TX77710, USA
Chun-Wei Yao*
Affiliation:
Department of Mechanical Engineering, Lamar University, Beaumont, TX77710, USA
Ian Lian
Affiliation:
Department of Biology, Lamar University, Beaumont, TX77710, USA
*
Address all correspondence to Chun-Wei Yao at cyao@lamar.edu
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Abstract

In this work, a facile superhydrophobic coating for 2024-T3 aluminum alloy is developed and characterized. The corrosion resistance of the coating was analyzed. The results showed that the coating has high polarization resistance and a low corrosion rate. Furthermore, a micro/nanoscale investigation about the interaction between substrates and the corrosive environment was carried out using the in situ atomic force microscope technique. The change in surface topography was monitored for both the bare aluminum alloy substrate and the superhydrophobic aluminum alloy. The results showed that the coating retained surface features indicated that the coating has excellent corrosion resistance.

Type
Research Letters
Information
MRS Communications , Volume 10 , Issue 2 , June 2020 , pp. 305 - 311
Copyright
Copyright © Materials Research Society 2020

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