Characterization and Mechanical Properties of hybrid SiC+Al2O3 reinforced Al6061-T6 surface composite
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 7
Abstract
Friction stir processing (FSP) was used for the fabrication of Al 6061 with SiC, Al2O3 nano composites for surface applications. The influence of rotational speed on mechanical properties of fabricated Aluminium alloy based surface hybrid composites through FSP was studied. The dispersion of SiC and Al2O3 on the fabricated surface hybrid composite was investigated by Optical Microscope. The uniform distribution of reinforcement particles (SiC and Al2O3) at the nugget zone was observed in all the microstructures of surface hybrid composite. The change in the properties (grain size) of the fabricated surface hybrid composite at Stir Zone (SZ), Thermo-mechanically affected zone (TMAZ) and Heat affected zone (HAZ) was observed. The increase in rotational speed resulted decrease in microhardness. The higher microhardness value in Al- SiC, Al2O3 surface hybrid composite is exhibited due to the presence and pinning effect of hard SiC and Al2O3 particles. The observed mechanical properties have been correlated with microstructures.
Authors and Affiliations
Ch. Mohana Rao, K. Mallikarjuna Rao
Keywords
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- EP ID EP391534
- DOI 10.9790/9622-0707017782.
- Views 101
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