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Abstract


INFLUENCE OF STIRRING PROCESS ON THE MECHANICAL PROPERTIES OF ENAC-46000 REINFORCED BY NANO-PARTICLES
In this study, ENAC-46000 alloy was reinforced by nano-particles in order to improve its mechanical properties. ENAC-46000 alloy-based composites were produced via the stir casting method. Three different reinforcement volume fractions, stirring speeds, and stirring temperatures were determined to study their effects on the mechanical properties of ENAC-46000 alloy-based composites. Brinell hardness test and three-point bending test were applied to determine the hardness and the flexural strength of ENAC-46000 alloy and composite samples. The results showed that the mechanical properties of the particle reinforced composites were improved due to nano-sized reinforcement particles. The hardness and the flexural strength of the composite samples increased with the increase in the volume fraction of nano-sized reinforcement particles. The mechanical properties of ENAC-46000 alloy declined as the stirring speed was increased. On the other hand, the mechanical properties of the composites improved with the increase in stirring speed due to uniform reinforcement particle distribution. As the stirring temperature was raised, the mechanical properties of the nano-particle reinforced composite samples improved because the fluidity of the molten alloy increases due to the increase in stirring temperature. However, when the highest values of volume fraction, stirring speed, and stirring temperature were simultaneously applied for the production of composite materials, these highest values of the investigated parameters resulted in a significant deteriorating influence on the mechanical properties of ENAC-46000 alloy-based composites.

Keywords
ENAC-46000 alloy, nanocomposite, stirring speed, stirring temperature



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    (25.05.2020)

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