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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.




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