Tribological Behavior of A-356/SIC/B4C Nanoparticles

Objectives: The main objective of this study was to analyze the tribological behavior of aluminum alloy reinforced with SiC/B4C nano particles. Methods: The composites were fabricated by mechanical and ultrasonic stirring and the reinforced aluminum composites were casted into cylindrical pins. The wear properties of the samples were then examined by using a pin-on-disc type wear testing machine under dry sliding condition and the results were tabulated. The micrograph study was also conducted to examine the agglomerates and porosity on the surface of the composites. Findings: The results proved that the aluminum composites with nano reinforcements have better wear resistance and lower coefficient of friction as compared with non-reinforced aluminum. The micrograph study revealed that the agglomerates and porosity on the surface of the composites were reduced by the use of ultrasonic stirring and cavitation processes. Application: The composites fabricated could be used in wear resistance applications and in elevated temperature applications.