EN
In this study, corrosion and electric conductivity of aluminum hybrid composites (in situ TiAl₃ and ex situ B₄C) produced by powder metallurgy are investigated. Hybrid (in situ and ex situ) aluminum composite powders are produced by adding different amounts of titanium and B₄C into AA7075 alloy powders. After the hybrid composite powders are cold pressed (600 MPa), they are sintered in atmosphere controlled furnace at 580°C for 4 h. As a result of this study, it was observed that increase of B₄C%(Ti constant) decreases density and increase of Ti%(B₄C constant) increases the density of composites. It was determined that corrosion resistances (R_{p}) of hybrid composites decreased due to interface surfaces formed between the reinforcement phase and the matrix.