Aging Treatment on Aluminium AA6063 against Bacterial Corrosion Resistance in Marine Environment

Herman Pratikno, Harmin Titah, Nurika Primiliana

2018

Abstract

The corrosion is a natural occurrence of metal damage caused by electrochemical interactions with the environment. One of the causes of corrosion is the attachment of bacteria to the material. The hazard caused by corrosion, especially on ship, corrosion can cause a failure on ship’s structure which causes the ship to not operate properly. The purpose of the research was to determine the effects of Aluminium AA6063 aging treatment on bacterial corrosion. The material was be treated by heat treatment (Aging Treatment) before the bacterial corrosion test was conducted. The bacterial corrosion test was carried out in artificial seawater with salinity of 33‰, 35‰ and 37 ‰. The addition of three species of bacteria, i.e. Thiobacillus ferrooxidans, Pseudomonas fluorescens and Escherichia coli were applied in all salinity with 5% (v/v). The bio-corrosion rate was determined using weight loss method and the microstructure of material was conducted at pre and post bacterial corrosion to determine the differences in the microstructure of the material before and after the bacterial corrosion test. The results showed the non aging treatment material has a higher corrosion rate when compared with the material with aging treatment. The non aging treatment material has the highest corrosion rate of 1.189 mmpy with the addition of Thiobacillus ferrooxidans at salinity of 37‰ and the lowest corrosion rate of 0.186 mmpy at salinity of 33‰. However, the aging treatment material has the highest corrosion rate of 0.770 mmpy and the lowest corrosion rate of 0.175 mmpy at similary condition. Based on microstructure results, uniform and pitting corrosion occurred on all specimens with the addition of bacteria or without the addition of bacteria. However, the bacterial corrosion rates were different. It was identified that aging treatment on Aluminium AA6063 can reduce the bacterial corrosion rate or increase the bacterial corrosion resistance.

Paper Citation

in Harvard Style

Pratikno H., Titah H. and Primiliana N. (2018). Aging Treatment on Aluminium AA6063 against Bacterial Corrosion Resistance in Marine Environment.In Proceedings of the 6th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN, ISBN 978-989-758-455-8, pages 159-164. DOI: 10.5220/0008649701590164

in Bibtex Style

@conference{isoceen18,
author={Herman Pratikno and Harmin Titah and Nurika Primiliana},
title={Aging Treatment on Aluminium AA6063 against Bacterial Corrosion Resistance in Marine Environment},
booktitle={Proceedings of the 6th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN,},
year={2018},
pages={159-164},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008649701590164},
isbn={978-989-758-455-8},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 6th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN,
TI - Aging Treatment on Aluminium AA6063 against Bacterial Corrosion Resistance in Marine Environment
SN - 978-989-758-455-8
AU - Pratikno H.
AU - Titah H.
AU - Primiliana N.
PY - 2018
SP - 159
EP - 164
DO - 10.5220/0008649701590164