Abstract
The paper is the result of investigations made on microstructure and mechanical behavior of 3 and 6 weight percentage of nano sized B4C particulate reinforced to Al7075 alloy composites. Al7075 matrix composite having nano boron carbide was fabricated by liquid stir casting method. The microstructure of the composites was examined by scanning electron microscopy. Further, mechanical behavior of Al7075 alloy, Al7075-3wt. % B4C and 6 wt. % B4C composites were studied. Tensile properties like hardness, ultimate tensile strength; yield strength, percentage elongation and compression strength were evaluated as per ASTM standards. Micro structural observation revealed uniform distribution of B4C particles in the matrix. The analysis disclosed hardness, ultimate tensile strength, yield strength and compression strength of composites increased due to increase in percentage of nano boron carbide particles and percentage elongation of the composites decreased with increase in B4C particulates in base alloy matrix.
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