EVALUATION THE EFFECT OF TITANIUM CONTENT ON 2024 ALUMINUM ALLOY-1.5% CARBON NANOTUBE COMPOSITE

Aluminum alloy 2024 is widely used in frame of aircraft. Carbon Nanotubes (CNTs) used recently as a reinforcement material for 2024 aluminum alloy. In this research 2024-1.5%CNTs hybrid composite was prepared by traditional casting. Titanium (Ti) was added in (0.2, 0.4, 0.6 and 0.8%) to 2024-1.5%CNTs composite. The chemical composition was investigated by optical emission spectroscopy (SPECTROMA). Scanning electron microscope and light optical microscope were used for microstructure examination. EDS used for evaluation of phases and intermetallic compounds. The microscopic examination showed that the grain size decreased with increasing Ti content in presence of CNTs and the microstructure be more regular with increasing Ti content. The EDS results that intermetallic compounds and phases precipitated at the grain boundaries and near grain boundaries.