Processing of Magnesium Metal Matrix Composite Reinforced with Graphene Nano Platelets through Vacuum Stir Casting and Investigating its Mechanical Behaviour

Abstract

Abstract

The application of metal matrix composites (MMCs) as structural engineering materials has received increasing attention in recent years. Their high strength and toughness at elevated temperatures coupled with low-density makes them suitable for use in applications where conventional engineering materials, such as steel are used. MMCs exhibit significantly higher stiffness and mechanical strength compared to matrix alloys, but often suffer from lower ductility and interior fracture toughness. MMCs have the ability to withstand higher tensile and compressive stresses by the transfer and distribution of an applied load from the ductile matrix to the reinforcement material. This load transfer is only possible due to the existence of an interfacial bond between the reinforcement elements and the matrix material. Therefore, appropriate selection of reinforcement material and its properties coupled with a good fabrication method, both of which affect this bond, will significantly influence the resulting MMC. There are different routes by which MMCs may be manufactured, and among all the liquid-state processes, stir casting technology is considered to have the most potential for engineering applications in terms of production capacity and cost efficiency. Casting techniques are economical, easier to apply and more convenient for mass production with regard to other manufacturing techniques. The present study has aimed at investigating the mechanical testing of graphene reinforced metal matrix composites by varying the weight fractions of graphene while keeping all other parameters as constant. Since the graphene nanoplatelets (GNP) have superficial properties in advance material research, using graphene in metal matrix composite, especially in magnesium MMCs, will be a greater advantage to the industries of automobile and aerospace. Though the graphene has most superior properties than the existing materials, all the properties will be incorporated in the magnesium matrix thereby increasing the existing properties of the magnesium MMC. The less weight, super conductivity and enormous dispersion of graphene every corner of magnesium MMC to get the properties of graphene.

Keywords: GnP-MMC, homogeneous dispersion, characterization, melting of magnesium, pin on disc wear test, light weight, thermal processing, high strength to weight ratio

Cite this Article

Saran Theja Manige, G. Harinath Gowd, B. Chandra Mohan Reddy. Processing of Magnesium Metal Matrix Composite Reinforced with Graphene Nanoplatelets through Vacuum Stir Casting and Investigating its Mechanical Behaviour. Journal of Thin Films, Coating Science Technology and Application. 2018; 5(3): 21–29p.