Iranian Journal of Materials Science and Engineering
Iran University of Science & Technology
Tue, Nov 26, 2024
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Volume 12, Issue 2 (June 2015)
IJMSE 2015, 12(2): 10-17 |
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Fattah-Alhosseini A, Ranjbaran M, Vajdi Vahid S. AN INVESTIGATION ON CORROSION BEHAVIOUR OF A356-10 VOL.% SiC COMPOSITES IN HCl SOLUTIONS. IJMSE 2015; 12 (2) :10-17
URL: http://ijmse.iust.ac.ir/article-1-798-en.html
URL: http://ijmse.iust.ac.ir/article-1-798-en.html
Abstract: (20495 Views)
In this study, corrosion behaviour of A356-10 vol.% SiC composites casted by gravity and squeeze casting
is evaluated. For this purpose, prepared samples were immersed in HCl solution for 1h at open circuit potential. Tafel
polarization and electrochemical impedance spectroscopy (EIS) were carried out to study the corrosion resistance of
composites. The Tafel polarization and EIS studies of the corrosion behaviour of the A356-10 vol.% SiC composites
showed that the corrosion resistance of the composite casted by squeeze casting was higher than that of the composites
casted by gravity in selected corrosion media. Also, the Tafel polarization and EIS studies revealed that the corrosion
current densities of both composites increase with the increase in the concentration of HCl. The micrographs of
scanning electron microscope (SEM) clearly showed the squeeze casting composite exhibits a good dispersion/matrix
interface compared to that of the composites produced by gravity casting
Type of Study: Research Paper |
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