Document Type: Research Paper
Department of Materials Engineering, Faculty of Engineering, University of Sistan and Baluchestan
University of Sistan and Baluchestan
This study deals with the effects of ZrSiO4 particles addition on the abrasive wear behavior of aluminum based metal matrix composites. The Al-A356/5 vol.% ZrSiO4 specimens were prepared by the injection of particles in the as-received form or Al-ZrSiO4 milled composite powder. Injection of composite powder caused remarkable improvement in ZrSiO4 distribution within the Al-356 matrix alloy. The composites were fabricated by two different routes of semisolid-liquid state (SL) and liquid-liquid state (LL). According to the results, when the stirring was conducted in the semi-solid state, a better distribution of reinforcing particles was observed. Based on the wear test results, the A356/(Al-ZrSiO4)cp composite processed in the SL state exhibited the highest wear resistance in terms of wear rate and friction coefficient. The worn surfaces of specimens were examined to identify the possible mechanisms.