Experimental Investigation of Microstructure and Mechanical Properties of Al 5052 Processed by Equal Channel Angular Pressing Technique
Equal Channel Angular Pressing (ECAP), a Severe Plastic Deformation (SPD) processes is generally employed to produce the ultrafine grain structured materials. ECAP has been effectively used in the microstructural refinement of almost all the structural materials. In the present investigation on Al-5052 alloy, an effort has been put forward to report the effects of route A on the microstructural characteristics. Prior to the ECAP process, Al 5052 alloy is subjected to the annealing treatment to relieve the thermal stress introduced during machining. ECAP has been performed at room temperature with the die angle of 90º. The evolution of microstructure is carried out using optical microscopy and correlated the grain refinement with the mechanical properties like microhardness and tensile property. The experimental result reveals that ECAP process exhibits increased yield, tensile strength and microhardness when compared to base material, and this occurs due to the attribution of grain refinement.
Al-5052, ECAP, Microstructure, Microhardness, Tensile property.