Multi-objective optimization on output responses for micro ECM of Al6063 alloy, silicon carbide and boron glass powder metal matrix composites

2020 ◽  
Author(s):  
T.A. Selvan ◽  
S. Madhankumar ◽  
A. Viswanathan ◽  
K.M. Senthilkumar
Keyword(s):  
Silicon Carbide ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Glass Powder ◽  
Matrix Composites ◽  
Multi Objective Optimization ◽  
Powder Metal ◽  
Multi Objective ◽  
Micro Ecm ◽  
Al6063 Alloy

Fabrication and characterization of Al6063/SiC composites using electromagnetic stir casting process

2021 ◽  
pp. 095440892110457
Author(s):  
Farhan A Shamim ◽  
Akshay Dvivedi ◽  
Pradeep Kumar
Keyword(s):  
Silicon Carbide ◽  
Tensile Strength ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Casting Process ◽  
Stir Casting ◽  
Matrix Composites ◽  
X Ray ◽  
Electromagnetic Stir Casting ◽  
Al6063 Alloy

In this work, metal matrix composites were fabricated using the electromagnetic stir casting process by adding 5 and 10 wt% silicon carbide in Al6063 alloy. Hardness, ultimate tensile strength, and yield strength of the developed Al6063/SiC/5p metal matrix composites have been improved by 17%, 18%, and 37%, respectively, in comparison with Al6063 alloy. Further, an improvement of 25%, 37%, and 71% in hardness, ultimate tensile strength, and yield strength, respectively, have been noted for Al6063/SiC/10p metal matrix composite in comparison with the Al6063 alloy. Results revealed that the hardness and strength of metal matrix composites were increased with silicon carbide addition in Al6063 alloy. The presence of different elements in metal matrix composites was identified by energy-dispersive X-ray spectroscopy and X-ray diffraction techniques. Energy-dispersive X-ray spectroscopy was used for elemental mapping observation of the metal matrix composites. Uniform distribution of reinforcement particles in the matrix with improved mechanical properties of metal matrix composites proved the adequacy of the electromagnetic stir casting process. The presence of facets and dimples in fractographs indicated the mixed mode of fracture. The average percentage porosity presented in Al6063/silicon carbide/5p and Al6063/SiC/10p metal matrix composites was found to be 4.68% and 5.22%, respectively.

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