Investigating the mechanical properties of tungsten carbide metal matrix composites with Al 6061

In the present study, attempts were made to synthesis nano-WC-reinforced Al6061 alloy composites using the squeeze casting process with varied weight percentages (2 wt%, 4 wt%, and 6 wt%) and compared to as cast Al6061 alloy. Using SEM and ASTM standards, the morphology and mechanical behaviour of the produced nano composite were evaluated. The microstructure of synthesised nanocomposites reveals an almost equal distribution of reinforcing particles throughout the matrix alloy, with no trace of residual pores. In comparison to the monolithic aluminium alloy, the nano composite's ultimate tensile and compressive strengths were determined to be 16.34% and 32.63%, respectively. Three-point bending tests were conducted to determine the bending behaviour of the hybrid composites. Due to the high dislocation density in the matrix and the huge variation in Young's modulus, the flexural strength (51.8%) of the composites improved significantly. Impact testing were conducted according to ASTM E23. Due to decreased porosity and better grain refinement, it was determined that the synthesised hybrid composites were considerably enhanced (42.8%).