Study of tribological characteristics of Al-Si based directional solidified FGM with graphite end chill

Abstract

The present work is to study the wear characteristics of graphite reinforced Al-Si based functionally Graded materials (FGMs). FGM were fabricated through directional solidification (DS) technique. To achieve this graphite chill were incorporated at the end of the mold. The accomplished FGM are explored for microstructure and tribological properties to study the significance of end chill. The microstructure is analysed using optical microscope, showed that the number of silicon particles present at the top portion is more when compared to the bottom portion. The tribological studies showed that top portion of FGM exhibited highest wear resistance in compared to the bottom portion. © 2020 Author(s).