Effect of anodizing on aluminum alloy 2024 with boric sulfate acid in medium 3.5 % NaCl

Authors

DOI:

https://doi.org/10.15587/1729-4061.2023.286351

Keywords:

Langmuir adsorption, aluminum alloy, acetic acid, inhibition efficiency, surface coverage

Abstract

The utilization of metal materials finds widespread applications in various industries, including the aircraft industry, where aluminum alloys are commonly employed. However, metal materials are prone to corrosion under specific conditions, necessitating the implementation of corrosion prevention methods to decelerate the material's corrosion rate. Corrosion is a process in which the quality of metal deteriorates due to environmental influences. An effective approach to inhibit corrosion is through anodizing, which involves applying a protective coating to the metal surface, preventing direct contact with the surrounding environment. In this research, the focus was on studying the corrosion rate of aluminum alloy 2024 using Boric Sulfate Acid Anodizing (BSAA) at 10 volts and immersion times of 10, 15, and 20 minutes, followed by sealing with acetic acid in a corrosive environment containing 3.5 % NaCl. The main goals were to evaluate the effectiveness of anodizing with and without sealing in lowering the rate of aluminum corrosion, to compare the effectiveness of anodizing with and without sealing, and to create adsorption models using Langmuir adsorption. Through the examination of the potentiodynamic approach, it was shown that anodizing had an inhibitory impact that was strengthened by sealing. The maximum efficiency of 76 % was attained after 20 minutes of anodizing and sealing at 10 volts. A correlation value of 0.7487 from the Langmuir adsorption modeling was also obtained, pointing to an advantageous adsorption behavior. This research demonstrates how effectively anodizing for aluminum alloy 2024 works with and without sealing, especially in a 3.5 % NaCl-corrosive environment

Supporting Agency

  • This research has been made possible with the valuable support and assistance from the Mechanical Engineering Laboratory at Hasanuddin University. The dedicated contributions and resources provided by the laboratory have contributed significantly to the successful execution and completion of this study.

Author Biographies

Muhammad Zuchry, Hasanuddin University

Doctoral Student, Graduate Student

Department of Mechanical Engineering

Ilyas Renreng, Hasanuddin University

Doctorate, Professor

Department of Mechanical Engineering

Hairul Arsyad, Hasanuddin University

Doctorate, Assistant Professor

Department of Mechanical Engineering

Lukmanul Hakim Arma, Hasanuddin University

Doctorate, Assistant Professor

Department of Mechanical Engineering

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Effect of anodizing on aluminum alloy 2024 with boric sulfate acid in medium 3.5 % NaCl

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Published

2023-08-31

How to Cite

Zuchry, M., Renreng, I., Arsyad, H., & Arma, L. H. (2023). Effect of anodizing on aluminum alloy 2024 with boric sulfate acid in medium 3.5 % NaCl. Eastern-European Journal of Enterprise Technologies, 4(6 (124), 41–50. https://doi.org/10.15587/1729-4061.2023.286351

Issue

Vol. 4 No. 6 (124) (2023): Technology organic and inorganic substances

Section

Technology organic and inorganic substances

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Copyright (c) 2023 Muhammad Zuchry, Ilyas Renreng, Hairul Arsyad, Lukmanul Hakim Arma

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