Laser powder bed fusion (L-PBF) is one effective technique in additive manufacturing (AM) that enables the production of intricate metallic parts, such as fittings, with precise dimensions and detailed designs in materials such as 316L, which exhibits unique microstructure that differs from those produced through conventional fabrication methods. It has been well documented the impact of different L-PBF processing parameters on the corrosion behavior, but there is still limited information on the initiation of pitting and the microstructural changes that occur under corrosion and flow conditions. This project investigates the corrosion behavior of cylindrical L-PBF manufactured 316L samples, manufactured a two different conditions (layer heights of 25 µm and 50 µm), in a rotating electrode test setup. The test cell featured a rotating cylinder electrode at a turbulent rotation speed. The fluid composition consisted on 3.5 wt% NaCl solution at different pH (acidic, as obtained, pH 8). Electrochemical characterization test included open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), and cyclic polarization to assess the corrosion resistance of AM samples. Microstructural analysis was performed using scanning electron microscopy (SEM/EDS) to examine the effect of rotation and different environment to the microstructure
