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Material Characterization Of 6061 Al-Si Cp Metal Matrix Composites

T.Prasad1, A.Chennakesava Reddy2  and T.Tirupati3

1CM Engg. College,Hyderabad andhrapradesh, India, 2 JNTU, Hyderabad andhrapradesh, India,  3Mallareddy college of Engg and Tech ., Hyderabad andhrapradesh, India

ABSTRACT

The unique tailorability of the composite materials for the specific requirements makes these materials more popular in a variety of applications such as aerospace, automotive (pistons, cylinder liners, bearings) and structural components, resulting in savings of material and energy. In this present work, the production and properties of Al 6061/SiC composites, made using stir casting method, are investigated. The specimens are made by liquid metallurgy route (bottom pouring) in mushy state with secondary processing method. The tensile properties and fracture mechanism of the cast material are experimentally studied. The influences of weight fraction of SiCp reinforcement on tensile strength and fracture toughness have been evaluated. The underlying mechanisms governing the fracture behavior during tensile and fracture toughness tests have been discussed. Also crack path morphology was studied to determine micro-mechanisms of failure and the influence of microstructure on crack growth characteristics. Tensile properties obtained by experimental results are compared with FEA results using ANSYS, commercial software.

Keywords: Aluminum MMC, Bottom pouring, secondary processing, fracture toughness.

 

 

 

 


International eJournal of Mathematical Sciences, Technology and Humanities

Volume 2, Issue 5, Pages:  756 - 765