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Influence of the alloying elements on uniform and pitting corrosion events induced by scn- anions on al-6061 and al-cu alloys surfaces
Author
Source
Issue
Vol. 6, Issue 1 (31 Mar. 2011), pp.91-105, 15 p.
Publisher
Yarmouk University Deanship of Research and Graduate Studies
Publication Date
2011-03-31
Country of Publication
Jordan
No. of Pages
15
Main Subjects
Topics
Abstract EN
The electrochemical and corrosion behavior of Al-6061, Al-4.5% Cu and Al-7.5% Cu alloys were studied in 0.50 M KSCN solution at 25 °C.
Open-circuit potential, Tafel polarization and ICP-AES measurements were used to study the uniform corrosion process on the surfaces of the tested alloys.
Cyclic polarization measurements were employed for pitting corrosion studies.
Obtained results were compared with pure Al.
Alloyed copper was found to enhance uniform corrosion of Al in SCN- solutions to an extent depending on its content in the Al sample.
The pitting potential (Epit) and the repassivation potential (Erp) increased with an increase in the alloyed copper content.
Thus alloyed copper suppressed pit nucleation and propagation.
The effect of temperature was also studied and the apparent activation energies were determined as a function of alloy composition.
Among the investigated materials, Al-6061 alloy has the highest corrosion resistance towards uniform and pitting corrosion processes in KSCN solutions.
American Psychological Association (APA)
Amin, Muhammad A.. 2011. Influence of the alloying elements on uniform and pitting corrosion events induced by scn- anions on al-6061 and al-cu alloys surfaces. Jordan Journal of Chemistry،Vol. 6, no. 1, pp.91-105.
https://search.emarefa.net/detail/BIM-264576
Modern Language Association (MLA)
Amin, Muhammad A.. Influence of the alloying elements on uniform and pitting corrosion events induced by scn- anions on al-6061 and al-cu alloys surfaces. Jordan Journal of Chemistry Vol. 6, no. 1 (Mar. 2011), pp.91-105.
https://search.emarefa.net/detail/BIM-264576
American Medical Association (AMA)
Amin, Muhammad A.. Influence of the alloying elements on uniform and pitting corrosion events induced by scn- anions on al-6061 and al-cu alloys surfaces. Jordan Journal of Chemistry. 2011. Vol. 6, no. 1, pp.91-105.
https://search.emarefa.net/detail/BIM-264576
Data Type
Journal Articles
Language
English
Notes
61
Record ID
BIM-264576