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Electrochemical behaviour of aluminum alloys in natural seawater

In natural seawater, pure aluminum develops oxide layer which forms a barrier, protecting against corrosion. Alloying with other elements prevents the development of oxide layer by introducing localized galvanic cells. Different aluminum alloys exhibit different electrochemical behavior. The scope o...

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Main Authors:	Ahmad A., Yahya Z., Daud N.A.Q.M., Daud M.
Other Authors:	57214160450
Format:	Conference paper
Published:	2023
Subjects:	Aluminum alloys Cathodic protection Corrosion potential Potentiodynamic scan Sacrificial anodes Sea water Tafel plot Alloying Alloying elements Aluminum Aluminum metallurgy Anodes Copper alloys Corrosion rate Corrosive effects Iron alloys Seawater Silicon Silicon alloys Sustainable development Tin Tin alloys Zinc Corrosion potentials Potentiodynamic scans Tafel plots
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id	my.uniten.dspace-29685
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spelling	my.uniten.dspace-296852023-12-28T15:30:46Z Electrochemical behaviour of aluminum alloys in natural seawater Ahmad A. Yahya Z. Daud N.A.Q.M. Daud M. 57214160450 56674203600 57212520928 35317262300 Aluminum alloys Cathodic protection Corrosion potential Potentiodynamic scan Sacrificial anodes Sea water Tafel plot Alloying Alloying elements Aluminum Aluminum metallurgy Anodes Cathodic protection Copper alloys Corrosion rate Corrosive effects Iron alloys Seawater Silicon Silicon alloys Sustainable development Tin Tin alloys Zinc Corrosion potentials Potentiodynamic scans Sacrificial anodes Tafel plot Tafel plots Aluminum alloys In natural seawater, pure aluminum develops oxide layer which forms a barrier, protecting against corrosion. Alloying with other elements prevents the development of oxide layer by introducing localized galvanic cells. Different aluminum alloys exhibit different electrochemical behavior. The scope of the project was to study the electrochemical behavior of different chemical composition of aluminum alloys in natural seawater. The significance of understanding the corrosion behavior of aluminum alloys is essential in the fabrication of sacrificial anodes to be used in cathodic protection in corrosion control. Aluminum alloys were fabricated using alloying elements Zn, Sn, Mg, Cu, Fe, and Si. Divided into two groups, samples of aluminum alloys in Group 1 contain same weight percent of Zn, and different weight percent of Sn. Aluminum alloy samples in Group 2 contains same weight percent of Mg, Cu, Fe and Si with different weight percent of Sn. The samples were then subjected to corrosion behavior experimentation which includes Tafel plot, corrosion potential and potentiodynamic scan. It was found that alloying with Mg, Cu, Fe, and Si instead of alloying only with Zn and Sn further increases the negative potential, the density of particle distribution and further reduces the corrosion rate of aluminum alloys. The activeness of aluminum alloys also increases when alloyed with Zn, Sn, Mg, Cu, Fe, and Si. �2009 IEEE. Final 2023-12-28T07:30:46Z 2023-12-28T07:30:46Z 2009 Conference paper 10.1109/ICEENVIRON.2009.5398659 2-s2.0-77949609941 https://www.scopus.com/inward/record.uri?eid=2-s2.0-77949609941&doi=10.1109%2fICEENVIRON.2009.5398659&partnerID=40&md5=bbf947e9dbc056afb1ad808e20dbf26e https://irepository.uniten.edu.my/handle/123456789/29685 5398659 110 116 Scopus
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
topic	Aluminum alloys Cathodic protection Corrosion potential Potentiodynamic scan Sacrificial anodes Sea water Tafel plot Alloying Alloying elements Aluminum Aluminum metallurgy Anodes Cathodic protection Copper alloys Corrosion rate Corrosive effects Iron alloys Seawater Silicon Silicon alloys Sustainable development Tin Tin alloys Zinc Corrosion potentials Potentiodynamic scans Sacrificial anodes Tafel plot Tafel plots Aluminum alloys
spellingShingle	Aluminum alloys Cathodic protection Corrosion potential Potentiodynamic scan Sacrificial anodes Sea water Tafel plot Alloying Alloying elements Aluminum Aluminum metallurgy Anodes Cathodic protection Copper alloys Corrosion rate Corrosive effects Iron alloys Seawater Silicon Silicon alloys Sustainable development Tin Tin alloys Zinc Corrosion potentials Potentiodynamic scans Sacrificial anodes Tafel plot Tafel plots Aluminum alloys Ahmad A. Yahya Z. Daud N.A.Q.M. Daud M. Electrochemical behaviour of aluminum alloys in natural seawater
description	In natural seawater, pure aluminum develops oxide layer which forms a barrier, protecting against corrosion. Alloying with other elements prevents the development of oxide layer by introducing localized galvanic cells. Different aluminum alloys exhibit different electrochemical behavior. The scope of the project was to study the electrochemical behavior of different chemical composition of aluminum alloys in natural seawater. The significance of understanding the corrosion behavior of aluminum alloys is essential in the fabrication of sacrificial anodes to be used in cathodic protection in corrosion control. Aluminum alloys were fabricated using alloying elements Zn, Sn, Mg, Cu, Fe, and Si. Divided into two groups, samples of aluminum alloys in Group 1 contain same weight percent of Zn, and different weight percent of Sn. Aluminum alloy samples in Group 2 contains same weight percent of Mg, Cu, Fe and Si with different weight percent of Sn. The samples were then subjected to corrosion behavior experimentation which includes Tafel plot, corrosion potential and potentiodynamic scan. It was found that alloying with Mg, Cu, Fe, and Si instead of alloying only with Zn and Sn further increases the negative potential, the density of particle distribution and further reduces the corrosion rate of aluminum alloys. The activeness of aluminum alloys also increases when alloyed with Zn, Sn, Mg, Cu, Fe, and Si. �2009 IEEE.
author2	57214160450
author_facet	57214160450 Ahmad A. Yahya Z. Daud N.A.Q.M. Daud M.
format	Conference paper
author	Ahmad A. Yahya Z. Daud N.A.Q.M. Daud M.
author_sort	Ahmad A.
title	Electrochemical behaviour of aluminum alloys in natural seawater
title_short	Electrochemical behaviour of aluminum alloys in natural seawater
title_full	Electrochemical behaviour of aluminum alloys in natural seawater
title_fullStr	Electrochemical behaviour of aluminum alloys in natural seawater
title_full_unstemmed	Electrochemical behaviour of aluminum alloys in natural seawater
title_sort	electrochemical behaviour of aluminum alloys in natural seawater
publishDate	2023
_version_	1806425805471875072
score	13.211869

Electrochemical behaviour of aluminum alloys in natural seawater

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