Improvement in Mechanical Properties of Aluminum Alloy 6061 by Equal Channel Angular Pressing

Mechanical Engineering

Equal Channel Angular Pressing (ECAP) is one of the severe plastic deformation processes in which an ultra large plastic strain is imposed on the material to get ultrafine grain structure. In this research a die having angular channel was designed. The channel angle and outer curvature angle were kept as 90˚ and 15˚ respectively. In order to investigate the effect of the grain refinement during ECAP on mechanical properties of Al 6061 alloy, the specimens was pressed by specific route. ECAP causes an impressive grain refinement and strengthening of material. Microstructural observation was undertaken using microscopy. In this research improvement in the mechanical properties of aluminum alloy 6061 after passing through ECAP was studied. Also change in microstructure was studied. We evaluated the mechanical properties such as tensile strength, ductility, and hardness. Effect of process parameters such as route and temperature on the microstructure and mechanical properties was studied.

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