Impact of Silicon and Boron Carbide Reinforcement on AA 2024 Hardness

Abstract

Aluminum matrix composites are emerging as advance engineering materials due to their strength, ductility and toughness. The aluminum matrix can be strengthened by reinforcing with hard ceramics particles like silicon carbide and boron carbide etc. In the present study, an effort is made to enhance the mechanical properties like tensile and hardness of AMCs by reinforcing 2024 Al matrix with boron carbide and silicon carbide particles by stir casting route. It is observed tha t by adding 5% reinforcement our hardness Brinell hardness as well as Rockwell hardness becomes 119 BHN and 49 HRB & further adding 10% reinforcement our hardness Brinell as well as Rockwell hardness is 185 BHN and 97 HRB respectively.