(2024-09-30) Santos, Paulo Vinícius Lima dos; Santos, Aureliano Xavier dos; http://lattes.cnpq.br/0810494477757052; https://lattes.cnpq.br/7584847021954297
Metallic materials are widely used in industry, including API 5L X70 steel, used for oil
transportation. However, these steels are susceptible to corrosion due to the aggressive
environment. As a result, various studies have been carried out to mitigate the effect of
corrosion. Solid wire welding processes are used to weld coatings for this purpose, but they
require information from the user to determine the most suitable welding conditions. The aim
of this work was to study the influence of welding parameters for Inconel 625-based coatings
on electrochemical corrosion measurements. To optimize the experiments, a full factorial
design was used to evaluate the welding parameters, welding speed and feed rate. After
welding, the samples were cross-sectioned and dilution calculations and iron content
measurements were made by EDX. Finally, to reveal the corrosion resistance, the electrochemical technique by linearpotentiodynamic polarization was used, through polarization resistance, corrosion potential,
corrosion current.
