Journal
CRYSTALS
Volume 11, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/cryst11101231
Keywords
Al-SiC nanocomposites; inductive sintering; ball milling; corrosion; surface analysis
Funding
- King Saud University, Deanship of Scientific Research, College of Engineering Research Center
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The fabrication of Al-2wt.% SiC nanocomposites through a novel milling route was investigated in this study. Results showed that increasing the ball milling time significantly decreased corrosion and improved corrosion resistance. Both uniform and pitting corrosion reduced with prolonged exposure time in chloride solution. Surface morphology and elemental analyses of different composites were examined using surface analyses techniques.
In this work, the fabrication of three Al-2wt.% SiC nanocomposites processed by novel milling route was carried out. The beneficial influence of milling route on the corrosion passivation of the new fabricated composites was investigated. The cyclic polarization measurements have proved that increasing the time of ball milling highly reduced the corrosion of Al-SiC nanocomposite via reducing obtained corrosion current and so increasing the corrosion resistance. These results were affirmed by the electrochemical impedance spectroscopy experiments. The pitting corrosion of the manufactured composites was also reported, and its intensity decreased with the increase of ball milling time. The electrochemical experiments were also performed after expanding the exposure time in the chloride solution to 24 and 48. It was found that both the uniform and pitting corrosion decrease with prolonging the time. The study was complemented by examining the surface morphology and the elemental analyses for the different composites by using surface analyses techniques.
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