Effect of Chloride Ions on the Corrosion Behavior of Al Zn Alloy in NaOH Solution at Four Different Temperatures

This research involves study effect of chloride ions in concentration range (0.01 0.50 mol.dm-3) on the corrosion behavior of Al-Zn alloy in basic media of 1x10-3 mol.dm-3 NaOH at pH=11 and four different temperatures in the range (298-313 K). Cathodic and anodic Tafel slopes (bc &ba) and trans...

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Main Authors: Hind B. Al-Atrakchy, Hanaa A. Al-Kaisy, Rana A. Majed
Format: Article
Language:English
Published: Al-Khwarizmi College of Engineering – University of Baghdad 2008-01-01
Series:Al-Khawarizmi Engineering Journal
Subjects:
Online Access:http://www.iasj.net/iasj?func=fulltext&aId=2205
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author Hind B. Al-Atrakchy
Hanaa A. Al-Kaisy
Rana A. Majed
author_facet Hind B. Al-Atrakchy
Hanaa A. Al-Kaisy
Rana A. Majed
author_sort Hind B. Al-Atrakchy
collection DOAJ
description This research involves study effect of chloride ions in concentration range (0.01 0.50 mol.dm-3) on the corrosion behavior of Al-Zn alloy in basic media of 1x10-3 mol.dm-3 NaOH at pH=11 and four different temperatures in the range (298-313 K). Cathodic and anodic Tafel slopes (bc &ba) and transfer coefficients (αc & αa) were calculated and the results interprets according to the variation of the rate determining steps. The results also indicate that the chloride ions are bonded chemically in the interface as an initial step of formation of different mixed oxohydroxy and chloro complexes. Polarization resistance (Rp) is calculates and interprets the different polarization behavior because of addition of chloride ions to the basic media.
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spelling doaj.art-49150238e1564c1eafe6489fa874f1e52022-12-21T22:57:03ZengAl-Khwarizmi College of Engineering – University of BaghdadAl-Khawarizmi Engineering Journal1818-11712008-01-01442636Effect of Chloride Ions on the Corrosion Behavior of Al Zn Alloy in NaOH Solution at Four Different TemperaturesHind B. Al-AtrakchyHanaa A. Al-KaisyRana A. MajedThis research involves study effect of chloride ions in concentration range (0.01 0.50 mol.dm-3) on the corrosion behavior of Al-Zn alloy in basic media of 1x10-3 mol.dm-3 NaOH at pH=11 and four different temperatures in the range (298-313 K). Cathodic and anodic Tafel slopes (bc &ba) and transfer coefficients (αc & αa) were calculated and the results interprets according to the variation of the rate determining steps. The results also indicate that the chloride ions are bonded chemically in the interface as an initial step of formation of different mixed oxohydroxy and chloro complexes. Polarization resistance (Rp) is calculates and interprets the different polarization behavior because of addition of chloride ions to the basic media.http://www.iasj.net/iasj?func=fulltext&aId=2205Al-Zn alloyEffect of chloride ionCorrosion behavior in basic medium.
spellingShingle Hind B. Al-Atrakchy
Hanaa A. Al-Kaisy
Rana A. Majed
Effect of Chloride Ions on the Corrosion Behavior of Al Zn Alloy in NaOH Solution at Four Different Temperatures
Al-Khawarizmi Engineering Journal
Al-Zn alloy
Effect of chloride ion
Corrosion behavior in basic medium.
title Effect of Chloride Ions on the Corrosion Behavior of Al Zn Alloy in NaOH Solution at Four Different Temperatures
title_full Effect of Chloride Ions on the Corrosion Behavior of Al Zn Alloy in NaOH Solution at Four Different Temperatures
title_fullStr Effect of Chloride Ions on the Corrosion Behavior of Al Zn Alloy in NaOH Solution at Four Different Temperatures
title_full_unstemmed Effect of Chloride Ions on the Corrosion Behavior of Al Zn Alloy in NaOH Solution at Four Different Temperatures
title_short Effect of Chloride Ions on the Corrosion Behavior of Al Zn Alloy in NaOH Solution at Four Different Temperatures
title_sort effect of chloride ions on the corrosion behavior of al zn alloy in naoh solution at four different temperatures
topic Al-Zn alloy
Effect of chloride ion
Corrosion behavior in basic medium.
url http://www.iasj.net/iasj?func=fulltext&aId=2205
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AT hanaaaalkaisy effectofchlorideionsonthecorrosionbehaviorofalznalloyinnaohsolutionatfourdifferenttemperatures
AT ranaamajed effectofchlorideionsonthecorrosionbehaviorofalznalloyinnaohsolutionatfourdifferenttemperatures