Experimental analysis of dissimilar metal of copper and brass plates fabricated friction stir welding

FSW parameters to fabricate the dissimilar materials of Brass-Copper joints without any defects. It evaluated by microstructural characteristics, mechanical behaviour of the welded joints. In this process tool cylindrical shoulder produced frictional heat among tool shoulder and base materials. Commercially size of plates 100 x 50 x 6 mm Br and Cu were welded by machine parameters of rotational speed 1200 rpm travel speed of 50 mm/min and an axial force of 8 kN without any tilt. The made-up of FSW specimens characterized microstructures by Optical Microscopy (OM) and Scanning Electron Microscopy (SEM). Observed microhardness by Vickers hardness tester. The observed stir zone area properly joined in dissimilar metals without any defects and enhanced the microhardness value. (C) 2019 Elsevier Ltd. All rights reserved.