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Effect of the addition of In3+, Sn2+ and Zn2+ ions on the electrochemical behavior of Al-Zn, Al-In and Al-Sn binary alloys in 3.5%NaCl

DSpace at IIT Bombay

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Title Effect of the addition of In3+, Sn2+ and Zn2+ ions on the electrochemical behavior of Al-Zn, Al-In and Al-Sn binary alloys in 3.5%NaCl
 
Creator VENUGOPAL, A
RAJA, VS
 
Description The effect of the addition of In3+, Sn2+ and Zn2+ ions on the electrochemical corrosion behavior of Al-Zn, Al-In and AI-Sn binary alloys in 3.5% NaCl has been investigated using, polarization and AC impedance and x-ray photoelectron spectroscopy. It was found that Zn added to Al-ln or AI-Sn acts synergistically with the activators to enhance the dissolution of Al. However, the synergism between Zn and In is stronger than that between Zn and Sn. Based on impedance and XPS results the existence of cations with valencies other than 3 (In+In2+ and Sn2+/Sn4+ ions) in the films have been suggested to be responsible for generation of point defects in the film, which in turn activate Al.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-10-27T10:34:55Z
2011-12-15T09:12:34Z
2011-10-27T10:34:55Z
2011-12-15T09:12:34Z
1998
 
Type Proceedings Paper
 
Identifier CORROSION AND ITS CONTROLS, VOLS I AND II,1067-1073
0-444-82916-4
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16267
http://hdl.handle.net/100/2748
 
Source International Conference on Corrosion (CORCON 97),MUMBAI, INDIA,DEC 03-06, 1997
 
Language English