Evaluation of Wear Properties of TiC Particulates Reinforced Al2219 Alloy Composites by Jayasheel I Harti confirm TiC composites was better than unreinforced alloy

Evaluation of Wear Properties of TiC Particulates Reinforced Al2219 Alloy Composites by Jayasheel I Hart
The Al2219-TiC composites fabricated in this study contains 2, 4 and 6 wt. % of ceramic TiC particulates.
The density of Al2219 alloy is 2.82 g/cm3 and the density of TiC is 4.93 g/cm3. The density of composites increases
with addition of TiC particulates. The TiC particulates are used in the study procured from Changsha Langfeng
Metallic Material CO.,Ltd., China

Abstract . In the present study, Al2219 – 2, 4 and 6 wt. % of TiC metal matrix composites were synthesized by Stir casting method. Microstructural analysis of Al2219-TiC composites was performed by using scanning electron microscopy. Microstructural characterization of the developed TiC particulates reinforced composites revealed uniform distribution of micro size TiC particulates in the base matrix. The wear resistance of metal matrix composites was studied by performing dry sliding wear test using a pin on disc apparatus. The experiments were conducted at a constant sliding speed of 600rpm and sliding distance of 2000m over a varying load of 0.5kg, 1kg, 1.5kg and 2kg. Similarly experiments were conducted at a constant load of 1kg and sliding distance of 2000m over a varying sliding speed of 600, 700, 800 and 900rpm. The results showed that the wear resistance of Al2219 – TiC composites was better than the unreinforced alloy.The wear rate was found to increase with the load and sliding speed. To study the dominant sliding wear mechanism for various test conditions, the worn surfaces were analyzed using optical microscopy.