Mauro Zampieri Louzada; Clara Johanna; Gabriela Ribeiro Pereira.
Resumo: This work aims to study the use of absolute probes as an alternative to detect sensitization of austenitic stainless steels by nondestructive eddy current testing. In contrast to the methodologies currently applied, this technique makes it possible to adapt inspections to promote the automation of processes, generated by advances in industry 4.0. In this study, a sample of AISI 304 austenitic stainless steel, sensitized in the laboratory, was inspected through eddy current equipment, using two different absolute probes, both produced at the laboratory, operating in a frequency range of 1 to 10 kHz. The results obtained prove the feasibility of using these probes to inspect sensitized structures, due to the variation in the responses obtained for the phase angle between the inspected specimens.
