Analisis Perbandingan Laju Korosi Alumunium 2024-T3 Dan T6 Dengan Dan Tanpa Pelapisan Zinc Coating Menggunakan Media Rendam Larutan Naoh 0,5 M Dan Hcl 0,5 M Untuk Ketahanan Konstruksi Pesawat Terbang
DOI:
https://doi.org/10.54706/senastindo.v7.2025.440Keywords:
Aluminium 2024-T3, Aluminium 2024-T6, Zinc CoatingAbstract
This research aims to analyze the comparison of corrosion rates between aluminum 2024-T3 and 2024-T6 with and without zinc coating using NaOH 0,5 M and HCl 0,5 M immersion media. Aluminum 2024 is widely used in aircraft construction due to its excellent strength-to-weight ratio, yet it remains susceptible to corrosion in aggressive environments. The zinc coating is applied as a protective layer to enhance corrosion resistance through an anodic protection mechanism.The experimental method involved immersing specimens for 7, 14, and 21 days in 0.5 M NaOH and HCl solutions. Parameters measured include weight loss, corrosion rate, and coating efficiency. The results indicate that zinc coating significantly reduces the corrosion rate compared to uncoated specimens. Moreover, the corrosion rate in HCl solution is higher than in NaOH, demonstrating that acidic environments cause more severe corrosion on aluminium surfaces. Overall, the application of zinc coating proved effective in enhancing the corrosion resistance of aluminum 2024-T3 and T6, making it a potential protective method to extend the service life of aircraft structures.
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