MECHANICAL AND WEAR EVOLUTION OF HYBRID Al COMPOSITES REINFORCED WITH GRAPHITE AND BLAST FURNACE PARTICLES

In this study, we tried to make hybrid aluminum metal matrix composites (AMMCs) reinforced by adding steel slag and Gr particles in it by combined powder metallurgy and press bonding process with 15% of blast-furnace slag and variable values of Gr contents. By examining the composite microstructure, the excellent distribution of particles in matrix aluminum as well as accuracy in the results, no reaction is observed between Al and particles. The obtained results showed that the wear rate and density of hybrid composite samples decreased to 2.3% and 24% by increasing the Gr volume contents, respectively. Also, the wear rate of samples which is related to the hardness value, increased by 181% by increasing the Gr content up to 10vol.%.

Automated summary

In this study, hybrid aluminum metal matrix composites (AMMCs) were produced by adding steel slag and Gr particles to the matrix aluminum using a combination of powder metallurgy and press bonding process. The composites showed excellent distribution of particles and no reaction between Al and particles. The addition of Gr content up to 10vol.% resulted in a decrease in wear rate and density of the composites by 2.3% and 24% respectively, while the wear rate increased by 181% due to the increase in hardness value.