Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 911, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2022.165058
Keywords
AA2024-T3 aluminum alloy; Corrosion protection; Electrodeposition; Graphene oxide
Categories
Funding
- National Natural Science Foundation of China [51801013]
- Natural Science Foundation of Shandong Province [ZR2020ME018, ZR2021ME218, 2019KJC020]
- Major Project of Binzhou University [2019ZD02]
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Hydrophobic silane/reduced graphene oxide (rGO) nanocomposites were successfully constructed on an AA2024-T3 aluminum alloy surface using a facile co-electrodeposition process. The composition and morphology of the nanocomposites were characterized, revealing a more compact and denser coating with excellent corrosion resistance and mechanical robustness. The results demonstrate the great potential of these nanocomposites for industrial applications.
Hydrophobic silane/reduced graphene oxide (rGO) nanocomposites were successfully constructed on an AA2024-T3 aluminum alloy surface using a facile co-electrodeposition process. The composition and morphology were characterized by ATR-FTIR, XRD, Raman spectroscopy, EDX, XPS and SEM. The results revealed that the implanted GO nanosheets were partially reduced and successfully covalently bonded with silanol groups to fabricate a more compact and denser coating. Electrochemical measurements demonstrated that the electrodeposited silane/rGO nanocomposite markedly decreased the corrosion rate of the AA2024-T3 alloy in 3.5 wt% NaCl solution. The protection efficiency was maintained over 96% after 120 h of exposure, presenting excellent chemical stability. Meanwhile, a sand paper abrasion test was performed to evaluate the mechanical robustness and the contact angle was reduced by only 4.5 degrees after 150 abrasion cycles. The excellent anti-corrosion property and mechanical robustness, along with the feasible electrodeposition procedure, show its great potential for industrial applications.(c) 2022 Elsevier B.V. All rights reserved.
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