THERMO-MECHANICAL AND MICROSTRUCTURAL INVESTIGATIONS OF AA 6061/GNPS WELDED JOINTS DEVELOPED BY CONTINUOUS DRIVE FRICTION WELDING

The paper provides a novel technique for merging graphene nanoplatelets (GNPs) within aluminium matrix (AA 6061) by continuous drive friction welding (CDFW). processes were done at 1400 rpm and 2000 rotational speeds with two different frictional loads N 2500 5 sec 7 times. welded joints subjected to tensile hardness tests. heating-cooling cycles through the process monitored. microstructure investigation was performed using optical scanning electron microscopes (SEM). effect of conditions on ultimate strength (UTS) results AA 6061 6061/GNPs completely studied in details. There is no big detectable variation mean values due GNPs addition. best achieving highest mechanical properties defined. presence lower heating joint same conditions. Finer grain structure homogeneous distribution zone observed.