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Interceram is SCOPUS-listed!
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  Hasan, Zahir ; Sehgal, D. K. ; Pandey, R. K.
Comparative Study of Wear Kinetics in Al-Si Piston Alloy and Al-SiC Particulate Composites
Interceram 60 (2011) [6] 370-375
High-Performance Ceramics


Abstract:
The Al-Si alloy with near eutectic composition has been conventionally used as a piston material for automobile applications. It is required to possess high abrasive wear resistance for enhanced life of the engine. The alloy has got having good wear resistance due to presence increased percentage of silicon in fine form. In the present investigation Al-SiC particulate composites with 10 % and 20 % SiC have been studied for their wear resistance against grey cast iron (GCI) counterface and a comparison has been made with existing piston alloy i.e. Al-Si alloy as well as the base Al-alloy (2124). The wear rate in terms of weight loss per unit sliding distance as well as the volumetric wear rate have been obtained for the Al-SiC composites. The characteristics of worn surface were investigated using SEM. The composites are found to possess very high wear resistance as compared to Al-Si piston alloy. The results have been discussed and important conclusions are outlined.

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