Title : ( Proposed stability product criterion for open hemispherical metastable pits formed in the crevices of different aspect ratios (l/d) on 316L stainless steel in 3.5% NaCl solution )
Authors: elahe shojaee , Mohammad Hadi Moayed , Mostafa Mirjalili , Sohrab Pahlavan ,
Full TextAbstract
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.
Keywords
, Stainless steel, Galvanostatic, Potentiostatic, SEM, Crevice corrosion
@article{paperid:1084409,
author = {Shojaee, Elahe and Moayed, Mohammad Hadi and Mirjalili, Mostafa and Pahlavan, Sohrab},
title = {Proposed stability product criterion for open hemispherical metastable pits formed in the crevices of different aspect ratios (l/d) on 316L stainless steel in 3.5% NaCl solution},
journal = {Corrosion Science},
year = {2021},
volume = {184},
month = {May},
issn = {0010-938X},
pages = {109389--109402},
numpages = {13},
keywords = {Stainless steel; Galvanostatic; Potentiostatic; SEM; Crevice corrosion},
}
%0 Journal Article
%T Proposed stability product criterion for open hemispherical metastable pits formed in the crevices of different aspect ratios (l/d) on 316L stainless steel in 3.5% NaCl solution
%A Shojaee, Elahe
%A Moayed, Mohammad Hadi
%A Mirjalili, Mostafa
%A Pahlavan, Sohrab
%J Corrosion Science
%@ 0010-938X
%D 2021
