Effect of different reinforcement on the microstructure and mechanical properties of AA2024-based metal matrix nanocomposites
Abdullah Hasan Karabacak, Aykut Çanakçı, Fatih Erdemır, Serdar Özkaya, Müslım Çelebı
Abstract
Abstract In this study, AA2024-B 4 C and AA2024-SiC nanocomposites were successfully produced by hot pressing and consolidation methods. The effects of different SiC and B 4 C contents on the mechanical properties and microstructure of the nanocomposites were investigated. The bending and tensile strength of AA2024-2 wt.% B 4 C nanocomposites reached up to 1286.7 MPa and 392.9 MPa, respectively. The bending strength of 676.7 MPa and tensile strength of 377.7 MPa were obtained for AA2024-2 wt.% SiC nanocomposites. The addition of the reinforcement can increase the bending strength of the nanocomposites even if porosity increases. Comparing the experimental results showed that B 4 C reinforced nanocomposites exhibited better mechanical properties than those of SiC reinforced nanocomposites. The type of Al 2 Cu phase plays a major role in the improvement of mechanical properties of the composites.