Microstructural and Mechanical Characterization of Chicken Eggshell-Reinforced Al6061 Matrix Composites

Abstract

Chicken eggshell (ES) is an aviculture byproduct that has been used as the reinforcement in the present study which is recorded worldwide as one of the vilest environmental problems. The present work deals with development of ES-reinforced Al6061 matrix composites by stir-casting process with 0 to 10 wt% of reinforcement at an interval of 2 wt%. The microstructures of the fabricated composites were examined by optical and scanning electron microscopes with energy dispersive spectrometer (SEM/EDS). Optical micrographs divulge the uniform distribution of reinforcing particles in the matrix while X-ray diffraction (XRD) patterns ensure the dispersion of ES particles reinforcement in Al6061 matrix. The properties measured include density, tensile strength and hardness values. The tensile strength and hardness of composites increase with the addition of ES particles and the maximum values were achieved at 4 wt%. Further increase of ES particles in the matrix leads to decrease in hardness and strength owing to increase in porosity.

Modeling and optimization of green-Al 6061 prepared from environmentally source materials

“…1 shows a high peak of Al as a major element while other elements such as Fe, Zn, Mg, Si, Cu, Mn, and Cr, are by the element composition. The compositions simply confirm that the alloy is typical of Al 6061 [ 31 ].

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Effect of Calcined Eggshell Particles on Some Properties and Microstructure of Al-Si-Mg Alloy

“…From the findings of Dwiwedi et al [7] and Ibrahim et al [8], one essential factor that limits the application of aluminum metal matrix composites is their high cost of production due to the use of expensive synthetic reinforcements such as SiO 2 , Al 2 O 3 , SiC, etc. To overcome this obstacle, researchers have shifted their focus to utilizing low-cost and lowdensity reinforcements such as eggshells, pumice, bagasse, carbonated coal, and others [1,3,7].…”

Mechanical and tribological behavior of friction stir processed AZ61/egg shell powder/WS2 Hybrid surface composite

“…Islam et al [23] investigated FSPed Al/Egg shell/SiC and showed that the hardness and tensile strength improved in the processed material. Dwiwedi et al [24] discussed the potential reduction in mechanical properties, when ESP added to the metal matrix above 4% by stir casting process. The decrease in mechanical properties is because of porosity.…”