This research study investigates the influence of sampling direction on microstructure and mechanical properties dissimilar joints formed by friction stir welding (FSW). The specimens were cut in two directions: perpendicular (transverse) parallel (longitudinal) to FSW joint. tests conducted included X-ray diffraction (XRD), macrostructure, microstructure, tensile, microhardness, fractography a...

The fretting performance of self-piercing riveting joining dissimilar sheets in TA1 titanium alloy and H62 copper alloy was studied in this paper. Load-controlled cyclic fatigue tests were carried out using a sine waveform and in tension-tension mode. Scanning electron microscopy and energy-dispersive X-ray techniques were employed to analyze the fretting failure mechanisms of the joints. The e...