Abstract:

Metal matrix composites, which have low density, high hardness, good wear resistance and high specific strength properties, are an important type of advanced engineering materials and they are preferred especially in the automotive, defense and aerospace sectors due to these properties. Aluminum metal matrix composites constitute an important class of metal matrix composites with their features such as low density, cheapness and easy production. The main element that improves the mechanical properties of metal matrix composites such as strength and hardness and high temperature resistance is ceramic-based reinforcing elements. At this point, the selection of reinforcement materials is very critical. In this study, the Analytical Hierarchy Process (AHP) Method, which is one of the multi-criteria decision-making methods, is used to decide on the choice of reinforcement material. Rigidity, density, fracture toughness, price and melting point are chosen as selection criteria. B4C, TiC, SiC and Al2O3, which are the most preferred reinforcement materials in the production of metal matrix composites, are chosen as alternative reinforcement types. As a result of the study, it has been determined that the most important selection criterion is rigidity (51%) and the most suitable alternative reinforcement material is B4C (42%).

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