Abstract
This work investigates the mechanism of crevice corrosion for a 316 L stainless steel in 3.5 % NaCl solution and assesses its characteristics. Potentiodynamic, potentiostatic, and galvanostatic techniques along with SEM were used to characterize the crevice corrosion at various gap sizes of 5, 10, 30, 60, 120 and 240 μm. Results revealed that the crevice corrosion initiates by pitting events stabilization. Using a novel approach and considering the crevice aspect ratio (l/d), it is discussed how the crevice geometry can affect pit stability product criterion. By increasing the crevice gap, the pit stability product decreased and the induction time increased.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have