Influence of SiC Microparticles and Multi-Pass FSW on Weld Quality of the AA6082 and AA5083 Dissimilar Joints

In the current research, influence of multi-pass friction stir welding and SiC microparticles on tensile strength, microhardness, %strain dissimilar reinforced joints AA6082 AA5083 was examined. A tool rotating speed 900 rpm, a transverse 45 mm/min, tilt angle 2º 8% volume percentage were considered as parameters for FSW. The finding demonstrated that increasing number FSW passes from one to three augmented dispersion pattern microparticles. grain refinement achieved by pinning effect dynamic recrystallization. three-passes FSWed joint exhibited highest strength (247.17 MPa), % strain (13.1%), microhardness (126.6 HV) due higher refinement.