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Universal Journal of Materials Science Vol. 6(3), pp. 79 - 84
DOI: 10.13189/ujms.2018.060301
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Effect of Graphene Content on Tensile Strength and Microstructure of Aluminum Matrix Composites


Mahmut Can Şenel , Mevlüt Gürbüz *, Erdem Koç
Mechanical Engineering Department, Faculty of Engineering, Ondokuz Mayıs University, Turkey

ABSTRACT

In this study, graphene nanoplatelets (GNPs) reinforced aluminum (Al) composites with various GNPs content (0.1, 0.3, 0.5wt.%) were fabricated by powder metallurgy (PM) method. In this method, ultrasonication, mixing, filtering, drying, compacting and sintering processes were performed. The crystal structure and microstructure of powders and fabricated composites were analyzed with X-Ray diffractometer (XRD) and scanning electron microscopy (SEM). With this study, the effects of GNPs content were investigated on the density, Vickers hardness, ultimate tensile strength, and microstructure of Al-GNPs composites. The Vickers hardness (57±2.5 HV) and ultimate tensile strength (120MPa) of Al-0.1%GNPs improved up to +90% and +23.3% when compared with pure aluminum (30±2 HV, 92MPa). From the microstructural analysis, homogeneously distributed GNPs was located at aluminum grain boundaries. The mechanical properties of Al-GNPs composite decreased due to the agglomeration of GNPs above 0.1wt.% GNPs content.

KEYWORDS
Powder Metallurgy, Aluminum, Graphene, Composite, Hardness, Strength

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Mahmut Can Şenel , Mevlüt Gürbüz , Erdem Koç , "Effect of Graphene Content on Tensile Strength and Microstructure of Aluminum Matrix Composites," Universal Journal of Materials Science, Vol. 6, No. 3, pp. 79 - 84, 2018. DOI: 10.13189/ujms.2018.060301.

(b). APA Format:
Mahmut Can Şenel , Mevlüt Gürbüz , Erdem Koç (2018). Effect of Graphene Content on Tensile Strength and Microstructure of Aluminum Matrix Composites. Universal Journal of Materials Science, 6(3), 79 - 84. DOI: 10.13189/ujms.2018.060301.