Impact of Stir Casting Parameter and Stirrer Blade Design on Mechanical Properties of Aluminium MMC: A Review

Among many other qualities, aluminium matrix composites provide reduced weight, increased strength, and increased resistance to wear. Comparing the stir casting technique to other manufacturing methods, it is simple to use, inexpensive, and appropriate for large quantities. Because it significantly affects the material's characteristics, distributing reinforcement evenly throughout the matrix is one of the main issues in producing aluminium MMCs. Review the many studies on the effects of stir casting parameters and stirrer blade design on the mechanical characteristics of aluminium MMC in order to fill this gap. The review highlights that both stir casting parameters and stirrer blade design significantly influence the mechanical properties and microstructure of Aluminium MMCs. Optimal stirring speed, time, and temperature promote uniform particle distribution, minimizing porosity and enhancing tensile strength and hardness. Stirrer blade design particularly blade shape, number, and angle affects vortex formation and reinforcement dispersion. Multi-blade and mixed blade designs yield more homogeneous composites with improved Brinell hardness and reduced clustering. Increased blade count and melting temperature enhance microstructural refinement and mechanical performance. Thus, the integration of optimized stir casting parameters and blade designs is crucial for superior AMMC properties.