Investigations on Mechanical Properties of Al 8011 Reinforced with Micro B4C/Red Mud by Stir Casting Method

Abstract

Aluminium metal matrix composites are emerging as the most versatile material for unique automotive, aviation, aerospace, defense, marine applications and other structural applications due to their excellent mixture of properties. In the present investigation, a hybrid composite of Al8011 aluminium alloy reinforced with B₄C and red mud was fabricated by stir casting method. Red mud is one of the major waste material extracted from the bauxite ore of alumina during Bayer’s process. Red mud is considered as a dangerous material according to the brazillian standard NBR 10004/2004, which is being worked under room condition as a reinforcement with aluminium metal matrix. The samples were casted by varying the proportions in weight percentage by stir casting route. The samples are subjected to tensile, compression, hardness test and its micro structures observed