Powder metallurgy route in production of aluminium alloy matrix particulate composites

Abstract

Meta1 matrix composites based on an aluminium alloys were produced by powder metallurgy route, involved unidirectionally hot pressing under 500 MPa for 15 minutes at temperature about 0.95 Ts [Solidus Temperature]. Metal matrix contains different weight percents of SiC, αAl2O3, WC and Si3N4 with different particle size. Wear and mechanical tests have been carried out on composites, and it was found that about 90% of wear reduction occured in composite with 30% SiC compared with pressed matrix

Experimental Examination of Metal Matrix Composite using EDM

“…Only white metals are taken into account for their low density material as a top spot. The familiar matrix metals are magnesium, Aluminium and Titanium and the wide applications of the matrix metals are aircraft and other industries .The high modulus rigidity of the reinforcement material to the metallic matrix materials for the high strength [1].The values is higher in results of strength to weight criteria for the most of the alloys .Here the aluminium as a base metals with the addition of boron carbide, aluminium oxide and Silicon Carbide for strengthening the base metals [2].K.Umanath et al proves that the matrix has an ability to expand inter-metallic facet and other abilites as such as very fine workability, and good thermal conductivity for the reinforcement material as SiC and its is very chemically matched with aluminium and it forms sufficient bond at very low cost [3]. The development of hybrid materials especially in the metal matrix composites for all the engineering components with high strength and amplified wear resistance and with the elevated temperature.…”

Manufacturing and Characterization of AA1100 Aluminum Alloy Metal Matrix Composites Reinforced by Silicon Carbide and Alumina Processed by Powder Metallurgy

“…Still, according Surappa [2], the composites of aluminum metal matrix present a wide range of challenges and opportunities. According to Al Rashed et al [3], particle-like reinforcements with similar dimensions in all directions and may be regular or irregular shape. Produce a certain uniform increase in strength (isotropic).…”