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Investigation on microstructural, physical and mechanical properties of AA6082/(SiC + + Graphite) hybrid composites
https://doi.org/10.17073/1683-4518-2018-9-40-46
Abstract
The current research work prominences on the development of hybrid aluminium (AA6082) matrix composites (HAMC) reinforced with different weight percentages of (silicon carbide (SiC) + graphite (Gr)) ceramic particulates by conventional stir casting process. The weight percentage of combined ceramic powder is varied from 5 to 15 wt. % in a stage of 5 wt. %. The microstructures, physical properties such as density and porosity as well as mechanical properties like hardness and tensile strength of the fabricated hybrid composites are analyzed. The scanning electron micrographs reveal the uniform distribution of (SiC + Gr) ceramic particulates in the aluminium matrix. The uniform distribution of reinforcement particles has also been verifed with the help of elemental maps of different element present in the hybrid composites. Density and porosity of hybrid composite increases from 2,69 to 2,72 g/cm3 and from 0,37 to 1,20 %, both the hardness as well as ultimate tensile strength have enhanced from 49,5 to 85 VHN and from 161,5 to 187 MPa respectively with a reduction in percentage elongationfrom 8,6 to 5,3 with rise in weight percentage of (SiC + Gr) ceramic particulates in the aluminium matrix from 0 to 15 wt. % respectively.Ill. 8. Ref. 49. Tab. 1.
About the Authors
P. SharmaIndia
V. Dabra
India
S. Sharma
India
D. Khanduja
India
N. Sharma
India
R. Sharma
India
K. Saini
India
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Supplementary files
For citation: Sharma P., Dabra V., Sharma S., Khanduja D., Sharma N., Sharma R., Saini K. Investigation on microstructural, physical and mechanical properties of AA6082/(SiC + + Graphite) hybrid composites. NOVYE OGNEUPORY (NEW REFRACTORIES). 2018;(9):40-46. https://doi.org/10.17073/1683-4518-2018-9-40-46
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