Corrosion of Additively Manufactured Stainless Steel 304L Considering Process Parameters and Build Location

Corrosion of additively manufactured stainless steel 304L (SS304L) is studied and compared to the wrought SS304L. The effect of process parameters and location on the build plate on the corrosion behavior is studied. The experimental results show there is a significant variation in corrosion behavior on different faces of a single printed specimen. Variation in corrosion behavior is also observed from one specimen to the other. Surface characterization has shown there is a strong correlation of the pitting potential with area averaged porosity. The surface analyses using SEM, EDX, and XRD are performed to better understand the effect of manufacturing route on corrosion of SS304L.