Abstract
Abstract The conventional copper alloys with regular grain structure and size are relatively low yield soft materials. To overcome this limitations of conventional tin bronze monolithic material to achieve good combination of strength, along with stiffness, toughness and density, current work focuses on the development of composites using boron carbide particulates as reinforcement. Boron carbide was chosen as a particle reinforcement for composite material for its high hardness, high melting point, low density, with high elastic modulus (448 GPa) and chemical properties. The composites are tested for its mechanical properties and correlated with the microstructural morphological changes using advanced microscopic techniques. The tensile test results shows on increasing percentage of reinforcement, the ductility of the composites is lost. The composites show, microstructural refinement and formation of intermetallic phases, at the grain boundaries justifying increases in the hardness and tensile strength of the as cast composite.
Published Version
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