Examining Aluminium Metal Matrix Composite Reinforced with Aluminium Oxide for Automotive Application's Corrosion Resistance

Abstract

Recent years have seen a substantial increase in interest in metal matrix composites (MMCs) because of their exceptional corrosion resistance and superior mechanical qualities. Due to their lightweight, high strength, and corrosion resistant qualities, aluminum and its alloys are used extensively across a variety of industries, but particularly in the manufacturing and aerospace sectors. Aluminum can be mixed with other substances, such as aluminum oxide (Al2O3), to create MMCs, further enhancing these qualities. In the proposed study, two MMCs were created by mixing aluminum with weight-proportionate amounts of 7% and 8% Al2O3. Using a salt spray corrosion test that lasted 96 hours, the corrosion resistance of these MMCs was assessed. The results of the corrosion tests revealed that both MMCs have a much higher corrosion resistance than pure aluminum. The Al2O3 particles in the MMCs, which serve as barriers against the migration of corrosive species to the metal matrix, can be credited for this. The outcome demonstrates that otter factors have a major impact on composite material corrosion behavior as well.