Investigation on the productiion of an Al matrix composite reinforced with metallic glass particles using equal channel angular pressing ECAP

In this study, pure Al matrix composite reinforced with Al65Cu20Ti15 metallic glass particles produced, using the equal channel angular pressing (ECAP) process. Al-based metallic glass (AMG) particles were synthesized by mechanical alloying process and then blended with Al powders as the matrix material. The ECAP processing was used for consolidation of the composite. The densities of the samples were measured to evaluate the performance of the consolidation process. Microstructure and mechanical properties of AMG composites were investigated. Structural analyses showed finely distributed reinforcing particles produced through shearing deformation, imposed during ECAP. The fully dense consolidated AMG composites showed a remarkable increase in compressive yield strength and appreciable plasticity at fracture, compared to the matrix alloy.

Keywords:

Aluminum-matrix composites (AMCs) , Equal channel angular processing (ECAP) , Metallic Glass particles , Microstructure , Mechanical properties