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Nurul Islami
Universitas Malikussaleh, Faculty of Engineering, Department of Mechanical Engineering, Bukit Indah, Lhokseumawe, 24355, Indonesia.

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Effect of jackfruit seed extract (artocarpus heterophyllus) concentration on corrosion inhibition of galvanized steel in seawater Sudirmansyah Lubis; Muhammad Sayuti; Muhammad Muhammad; Rizka Mulyawan; Nurul Islami
Jurnal Polimesin Vol 23, No 1 (2025): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i1.6200

Abstract

This study confirms that immersion time and inhibitor concentration significantly affect the corrosion rate of galvanized steel in seawater. Without an inhibitor (0% concentration), the corrosion rate progressively increases, reaching a maximum of 0.4395 mpy after 30 days. In contrast, the addition of jackfruit seed extract effectively reduces corrosion, with the lowest rates observed at 0.0441 mpy (2%), 0.0330 mpy (4%), and 0.0192 mpy (6%) after 30 days. These results highlight the high efficiency of jackfruit seed extract as a natural corrosion inhibitor, demonstrating that higher concentrations and longer immersion times enhance corrosion protection. This study suggests that jackfruit seed extract is a viable, eco-friendly alternative to synthetic inhibitors, offering a sustainable solution for corrosion prevention in marine environments. Further research on long-term stability and large-scale applications is recommended to optimize its industrial implementation.