Abstract
This paper is aimed at investigating the corrosion behavior of Pure and Zinc-graphite particles with percentage of 1, 3, and 5%, respectively. The composites were fabricated by powder metallurgy method. Corrosion tests were performed according to ASTM standard. Corrosion rate was calculated and it is found that in all cases the corrosion rate was decreasing with the increase in exposure time. Meanwhile, the microstructure of composites was imaged and analyzed using optical microscope and scanning electron microscope. It is observed that the best corrosion resistance was zinc with 1% Graphite while Zinc with 3% and 5% Graphite composites did not enhance the corrosion resistance comparing to pure Zinc.
Highlights
Increasing use of advanced composites materials is being made especially in aircraft and aerospace vehicles
It has been established that the corrosion behavior of Metal matrix composites (MMCs) is influenced by various factors like composition of the alloy used, the reinforcing particles used, its size and distribution in the matrix, the technique adopted for fabrication, and the nature of interface between the matrix and reinforcement
Seah et al have investigated the corrosion characteristics of cast ZA-27 alloy reinforced with graphite particles (1, 3, and 5% wt) which results in increasing corrosion rate [5]
Summary
Increasing use of advanced composites materials is being made especially in aircraft and aerospace vehicles. Seah et al have investigated the corrosion characteristics of cast ZA-27 alloy reinforced with graphite particles (1, 3, and 5% wt) which results in increasing corrosion rate [5].
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