رفتار سايشي كامپوزيتهاي Fe-TiC با زمينه چدن و فولاد

Wear behavior of Fe-TiC steel and cast iron matrix composite

The aim of this work is determining the effect of the addition of a reinforced-phase into steel and cast iron matrix ferrotic composites. The In-situ method was performed to synthesize the composites containing titanium and graphite (weight ratio 4:1). The microstructures were examined under scanning electron and optical microscopes. The hardness and wear test were used to determine the properties of the specimens. Results have shown that in the as-cast and heat treated cast iron matrix composites, wear resistance increases with volume percent of TiC until 6. In all steel matrix composites, wear resistance increases with the volume fraction of TiC. In steel and cast iron matrix composites containing less than 6 volume percent of TiC, quenching heat treatment causes an increase in wear resistance.