Tuning surface wettability of Al and its correlation with short and long term corrosion resistance in saline solutions

Khajavian E, Attar MR, Mohammadi-Zahrani E, Liu W, Davoodi A, Hosseinpour S (2021)


Publication Type: Journal article

Publication year: 2021

Journal

Original Authors: Ehsan Khajavian, Mohammad Reza Attar, Ehsan Mohammadi-Zahrani, Wei Liu, Ali Davoodi, Saman Hosseinpour

Pages Range: 127950

Article Number: 127950

DOI: 10.1016/j.surfcoat.2021.127950

Abstract

In this work, we fabricated superhydrophilic aluminum alloy (AA 6063) with a hierarchical labyrinth-like structure using a facile and environmentally benign chemical etching method. The patterned samples were functionalized by stearic acid molecules to obtain superhydrophobic samples with water contact angle (CA) >160°, at optimum conditions. Although the superhydrophobic samples initially exhibited up to two orders of magnitude better corrosion resistance compared to as-received samples, their corrosion performance and CA gradually reduced upon prolonged exposure to 3.5 wt% NaCl solution. Hence, the initial high CA in superhydrophobic surface layers cannot be used as a measure of their long-term corrosion stability.

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APA:

Khajavian, E., Attar, M.R., Mohammadi-Zahrani, E., Liu, W., Davoodi, A., & Hosseinpour, S. (2021). Tuning surface wettability of Al and its correlation with short and long term corrosion resistance in saline solutions. Surface & Coatings Technology, 127950. https://dx.doi.org/10.1016/j.surfcoat.2021.127950

MLA:

Khajavian, Ehsan, et al. "Tuning surface wettability of Al and its correlation with short and long term corrosion resistance in saline solutions." Surface & Coatings Technology (2021): 127950.

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