Experimental Investigation of Mechanical Properties of AA 6061 / SiC Nano-Composite Produced by Multistep FSP

In the production of metal matrix composites when the size of the additive particles is reduced from micrometer to nanometer, all of the conventional producing methods are inefficient. Composites produced by these methods only improve the mechanical properties and in many cases result in weakness of other properties of the produced composite. In this study, AA6061 / SiC layered nanocomposite and also homogeneous nano-composite were produced with FSP process. Since the focus was on improving the impact resistance and reducing the fracture failure at high strength. Three-point bending, Charpy shock and hardness tests were performed on the specimens. Also, the cross-sectional fracture of the specimens were performed by electron microscopy (FE-SEM). The results showed that the flexural properties, traction absorption and FG composite layer breakage were improved compared to homogeneous HNC composites, which made the composite produced at the same high strength not too brittle, and this would widen the range of application of the composite. The results also showed that improvement of hardness, bending and impact properties are 15, 68, 16 respectively.