|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Materials for Transportation and Lightweighting
||Effect of Al2O3 Volume Percentage on the Mechanical Properties and Strengthening Effect in Al Alloy Nano Composites Fabricated by Ultrasound Assisted Solidification Technique
||Neeraj Srivastava, G.P. Chaudhari
|On-Site Speaker (Planned)
Al6061 alloy composites are fabricated by ultrasound solidification technique by varying the weight percentage (1, 3 and 5%) of Al2O3 nanoparticles. It is observed that high intensity ultrasound vibrations (~ 4.3 kW/cm2) to the melt resulted in well dispersion of Al2O3 particles in the Al6061 alloy matrix. The microstructural and mechanical properties of composites are investigated. The presence of nanoparticles are enhanced the mechanical properties of composites as compare to base alloy. A comparison is made between the experimental yield strengths of the nano composites and the theoretical yield strengths calculated by coefficients of thermal expansion mismatch, Hall-patch, load bearing effect and Orowan strengthening models.
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