The aim of the current research to make an attempt to investigate the hybrid reinforced of niobium carbide (NbC) and titanium carbide (TiC) aluminum matrix composites under room temperature to elevated temperature conditions. The aluminum L25 alloy is reinforced with vary weight proportion ( 1, 2 and 3 wt.%) of NbC and TiC composites using stir casting technique. To investigate the mechanical behaviour of LM 25 alloy and composites under room temperature to elevated temperature conditions. The results revealed that the LM alloy is lost its strength after the 200oC. The L25 alloy-3 wt. % TiC-3wt. % MgO (LMTN-3) composites have higher strength compared to L25 alloy-1wt. % TiC-1wt. % MgO (LMTN-1), L25 alloy-2wt. % TiC-2wt. % MgO ((LMTN- 2) composites. The weight percentage of reinforcement is increased with increase the yield and tensile strength of the composites. However, the testing temperature is increased with decrease the yield and tensile strength of the composites. In addition to the deformation of composites is decreased with increase the weight percentage of the reinforcement. Furthermore, the stress strain curves show the transformation from ductile to brittle state of the materials.
Volume 12 | 03-Special Issue