Özet:

In this study, the Al-7Si 10%B4C metal matrix composite material was produced using the powder metallurgy method by adding 10% B4C to the Al-7%Si powder mixture. The prepared powder mixtures were undergoing a cold pressure process at a pressure of 450 MPa and synthesized for 60 minutes at different synthesizing temperatures (550 oC, 570 oC and 590 oC) in the argon gas atmosphere. The micro-structure of the Al7Si%10B4C composite materials produced at different synthesis temperatures is characterized by SEM+EDS, X-ray breakdown (XRD) and hardness measurement. The study found that the increase in the synthesis temperature and the formation of phases and compounds between the matrix phase Al3,21Si0,47 and the matrix-supplement AlB12, AlB10. There is also a noticeable increase in hardness values due to the increase in temperature values.

Anahtar Kelimeler:

Özet:

In this study, Al-7Si%10B4C metal matrix composite material was produced by adding 10 wt. % B4C in weight into the Al-%7Si powder mixture, using powder metallurgy method. The prepared powder mixtures were subjected to cold press under a pressure of 450 MPa and sintered for 60 minutes at different sintering temperatures (550°C, 570°C and 590°C) in an argon gas atmosphere. Microstructures of Al7Si%10B4C composite materials produced at different sintering temperatures were characterized by SEM+EDS, X-ray diffraction (XRD) and hardness measurements. As a result of the study, it was observed that Al3,21Si0,47 in matrix phase and AlB12, AlB10, phase and compounds between matrix and reinforcement were formed by increasing the sintering temperature. Furthermore, it was determined that there is a significant increase in hardness values due to the increase in temperature values.