Akademik Veri Yönetim Sistemi
2. International Üsküdar Scientific Research and Innovation Congress, İstanbul, Türkiye, 29 - 30 Kasım 2024, ss.955-963
Metal matrix composites are materials where the matrix material consists of a metal such as Ti, Mg, Cu or Al and one or more reinforcing materials are added to the matrix. The high strength, thermal and electrical conductivity and wear resistance of metal matrix composites make these materials preferred in many industries and applications. Among metal matrix composites, aluminium matrix composite materials are the most common composite materials among metal matrix composite materials thanks to their advantages such as low density and high strength and are the most preferred composite materials in areas such as defence industry, aerospace industry, automotive and energy industry. The properties of aluminium matrix composite materials such as high strength, light weight, high wear and corrosion resistance, thermal and electrical conductivity can generally be further improved by reinforcing ceramic or metal reinforcement particles into the matrix. In the production of aluminium matrix composites, powder metallurgy method is a superior production method compared to other methods due to the homogeneity of the distribution of the reinforcement particles in the matrix, increasing the wettability of the reinforcement particles by embedding them in the matrix, minimising material and energy waste, and achieving high strength values relatively easily. In this study, B4C ceramic reinforcement particles were added to AA2024 matrix powders at increasing ratios by weight and milled for 12 hours by mechanical alloying method with the addition of 2% methanol as process control agent and the powder morphology examinations, particle size and distribution values and particle hardness values of the produced composite powders were measured. Accordingly, in the morphological examinations of AA2024 matrix composite powders with increasing B4C ratios, the morphology of the structure changes to a flaky-spherical structure increasing reinforcement amount and the particle hardness values of the produced composite powders were determined as 277.3 HV, 289.6 HV and 312.5 HV, and the particle size values of the composite powders were measured as 47,737 μm, 43,304 μm and 38,498 μm, respectively, according to increasing reinforcement ratios.