Research Information System
4th International Conference on Applied Engineering and Natural Sciences, Konya, Turkey, 10 - 13 November 2022, pp.1396-1400, (Full Text)
Aluminum-based metal matrix composites are widely used engineering materials due to their unique properties. In addition to its mechanical and physical properties, its manufacturability with various production methods increases the interest in these materials. Stir casting method is also a technique that is frequently used and researched in the literature for the production of metal matrix composites. However, disadvantages such as insufficient wettability and particle cluster porosity formation that are specific to this method can reduce the efficiency that can be obtained from composite materials. In this study, A356 aluminum alloy was used as the matrix phase and reinforced with 5%, 10%, 15%, and 20% silicon carbide (SiC) particles using the stirred casting method. After the production process and the determination of the porosity amount, the mechanical properties of the composite materials were revealed by tensile and wear tests. With the experimental data obtained, it was observed that the amount of porosity increased with the increasing reinforcement phase in the structure. Increasing the amount of porosity caused a decrease in the tensile strength values and wear resistance of composite materials. As a result of increasing particle cluster amount, regional high stress regions were formed and reductions in the tensile strength of composite materials were observed. Similarly, in wear tests, as a result of high particle cluster porosity values, debonding and pulling out occurred on the surface, and wear resistance decreased.