Development And Investigations Of SiC Particulates Reinforced Aluminium Metal Matrix Composite for Mechanical Tribological and Fatigue Properties

Abstract

Metal matrix composites (MMCs) are used for structural applications due to their weightsaving newlineapplications and most MMC exhibit good wear resistance and enhanced thermal newlineproperties. Widely recognized most metal matrix composites have aluminum, magnesium, newlineand titanium alloys as matrix material and are reinforced with silicon carbide, alumina, newlinegraphite and boron carbide, etc. newlineAl6061 is generally utilized for the development of aircraft structures, for example, wings newlineand fuselages of aircraft bodies and also in the helicopter rotor blade. Two distinct cracks are newlinebeing explored in aircraft wings; (a) Cracks around bolt thread holes in the inward wing newlinestructure and (b) Cracks at the edges of the vertical web of the feet. Fasteners will combine newlinewith applied high loads and the stresses arising from the interference fit potentially lead to newlinecracking. The specific kind of aluminum alloy utilized will likewise influence this joint newlinebehavior where a balance must be accomplished between fracture toughness, stiffness, and newlinestrength. newlineIn this background, Al6061-SiC particulate composites have a wide range of scope for the newlineresearch. Research must be conducted in the area of mechanical behavior, fatigue, and newlinefracture, to avoid the cracking, and also on the wear and corrosion behavior of the Al6061- newlineSiC particulate reinforced composites to enhance the material s mechanical and fracture newlinebehavior. newlineThe material chosen for this work is Al6061-T6 alloy and SiC particles. To process the said newlinecomposites, the stir casting route has been utilized for various weight fractions of newlinereinforcement such as 3wt%, 6wt%, 9wt%, and 12wt% SiC. From the SEM results it is newlineidentified that, at all weight fractions of SiC, the Al6061-SiC particulate composites exhibit a newlineuniform distribution. The EDX results it is confirming, at all weight fractions of SiC, the newlinepresence of the reinforcing elements in the Al6061-SiC particulate composites. newlineThe Vickers hardness of the Al6061-SiC composites for all the weight fractions of the newlinereinforcement has been determined us