The objective of this work was to determine the fatigue life of wire materials by rotary bending and to identify parameters of mechanical loading and deformation associated with the characteristics of the rupture generated by fatigue to prevent failures. An AWS A5.18 welding wire with diameter
0.80 mm was used as the specimen. The welding wire specimens were
subjected to an average rotation of 611.3 rpm with a bending radius of 80 mm. The results show that the welding wire supports around 10,000 cycles until its fracture, and SEM image analysis indicates a combined fracture of failure and ductile fractures.
