• Raghavendra N
• D. Shivalingappa
• Harish A

In this work the study on hardness, tensile and wear behaviour of dual particle and triple particle size Alumina (Al2O3) reinforced aluminium alloy based metal matrix composite (Al2O3-Al MMC) was carried out. Al-MMCs were prepared using 10 vol% Al2O3 reinforcement into aluminium metal matrix and developed using stir casting process. Stir casting is a primary process of composite production whereby the reinforcement ingredient material is incorporated into the molten metal by stirring. The Dual particle and Triple particle composite consists of Al2O3 in four different sizes i.e. coarse, intermediate, fine and super fine (210µ, 180µ, 80µ & 10µ).The hardness test was carried out using Vickers Hardness Tester and Brinell Hardness Tester. Tensile test was carried out on a Universal Testing Machine (UTM). The test results showed that Dual particle composite and triple particle composite exhibited better hardness compared to as cast AL-7075. Tensile Strength of Triple particle reinforced MMC was found to be higher than that of dual particle reinforced composite material.

Dual Particle, Triple Particle, Stir Casting Al 7075, Al2O3, Wear rate

"Correlation of Tensile and Hardness of Dual Particle and Triple Particle Reinforced Al-7075/ Al2O3 Metal Matrix Composite ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 6, page no.f227-f234, June-2022, Available :http://www.jetir.org/papers/JETIR2206529.pdf

"Correlation of Tensile and Hardness of Dual Particle and Triple Particle Reinforced Al-7075/ Al2O3 Metal Matrix Composite ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 6, page no. ppf227-f234, June-2022, Available at : http://www.jetir.org/papers/JETIR2206529.pdf