On the critical pit stability product of stainless steel as a function of pit depth
Source abstract
Abstract
A stepwise galvanostatic method was developed to identify the critical pit stability product, (x‧i)crit, of 316 L stainless steel (SS) as a function of pit depth in 0.6 M NaCl at 25°C. (x‧i)crit for a flat-bottom pit was 80-90% of the (x‧i) value for salt film formation, (x‧i)sf, independent of pit depth. However, the (x‧i) threshold at which the pit propagated with a heterogeneous dissolution interface, (x‧i)crit-het, decreased with increased pit depth. The pit adapted its morphology to maintain the active propagation when (x‧i) was between (x‧i)crit-het and (x‧i)crit. The heterogeneous dissolution mechanism was also evaluated using numerical modelling.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Corrosion Behavior and Inhibition · Concrete Corrosion and Durability
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Determination of the critical pitting temperature of martensitic and supermartensitic stainless steels in simulated sour environments using electrochemical noise analysis10.5006/1.3381568 ↗
2. V. Baez, J.R. Vera, R. Villalba, Electrochemical noise for evaluating pitting resistance of cra materials under simulated well conditions, in: CORROSION 2001, OnePetro, 2001.10.5006/C2001-01103 ↗
3. Pitting corrosion of metals: a review of the critical factors10.1149/1.1838615 ↗
4. Origins of pitting corrosion10.1179/147842204225016859 ↗
5. Localised corrosion: general discussion10.1039/C5FD90046H ↗
6. XPS and STM investigation of the passive film formed on Cr (110) single-crystal surfaces10.1149/1.2059274 ↗
7. A point defect model for anodic passive films: I. Film growth kinetics10.1149/1.2127591 ↗
8. Localised dissolution kinetics, salt films and pitting potentials10.1016/S0010-938X(97)00049-8 ↗
9. Mass transfer and electrochemical kinetic interactions in localized pitting corrosion10.1002/aic.690320605 ↗
10. Perspective—localized corrosion: passive film breakdown vs pit growth stability10.1149/2.1381704jes ↗
11. Transport processes and the mechanism of pitting of metals10.1149/1.2132857 ↗
12. Metastable pitting corrosion of stainless steel and the transition to stability10.1098/rsta.1992.0114 ↗
13. WR Whitney award lecture: understanding the corrosion of stainless steel10.5006/1.3281676 ↗
14. On a recent quantitative framework examining the critical factors for localized corrosion and its impact on the Galvele pit stability criterion10.5006/2334 ↗
15. Localized corrosion: passive film breakdown vs. pit growth stability: Part III. A unifying set of principal parameters and criteria for pit stabilization and salt film formation10.1149/2.0251811jes ↗
16. Metastable pitting of stainless steel10.5006/1.3583880 ↗
17. Localized corrosion: passive film breakdown vs. Pit growth stability: part IV. The role of salt film in pit growth: a mathematical framework10.1149/2.0211906jes ↗
18. Localized corrosion: passive film breakdown vs pit growth stability: Part V. validation of a new framework for pit growth stability using one-dimensional artificial pit electrodes10.1149/2.0431911jes ↗
19. Transport processes in passivity breakdown—II. Full hydrolysis of the metal ions10.1016/0010-938X(81)90009-3 ↗
20. Transport processes in passivity breakdown—III. Full hydrolysis plus ion migration plus buffers10.1016/0010-938X(84)90034-9 ↗
21. A high-throughput artificial pit technique to measure kinetic parameters for pitting stability10.1149/2.0281514jes ↗
22. One-dimensional pit experiments and modeling to determine critical factors for pit stability and repassivation10.1149/2.0651613jes ↗
23. Pit growth studies in stainless steel foils. II. Effect of temperature, chloride concentration and sulphate addition10.1016/S0010-938X(01)00134-2 ↗
24. Determining the Critical Pit Stability Product of Stainless Steels10.1149/1945-7111/ac9558 ↗
25. Effects of nitric acid passivation on the pitting resistance of 316 stainless steel10.1016/S0010-938X(00)00052-4 ↗
26. Improving the corrosion behaviour of powder metallurgical 316L alloy by prepassivation in 20% nitric acid10.1016/j.corsci.2010.09.004 ↗
27. Methodology evaluation for the pre-dissolving step in one-dimensional pit experiments: can we avoid lacy cover formation?
28. On the critical factors for estimating the pit stability product under a salt film
29. Numerical model for one-dimensional pit growth of 316L SS under a salt film10.1149/1945-7111/ac3d01 ↗
30. In situ study of salt film stability in simulated pits of nickel by Raman and electrochemical impedance spectroscopies10.1149/1.1838173 ↗
31. Cryo-based structural characterization and growth model of salt film on metal10.1016/j.corsci.2020.108812 ↗
32. In situ X-Ray microprobe study of salt layers during anodic dissolution of stainless steel in chloride solution10.1149/1.2044138 ↗
33. Geometric evolution of flux from a corroding one-dimensional pit and its implications on the evaluation of kinetic parameters for pit stability10.1149/2.1221610jes ↗
34. Cristofaro, Analysis of the galvanostatic polarization method for determining reliable pitting potentials on stainless steels in crevice-free conditions10.1016/S0010-938X(03)00102-1 ↗
35. The use of very weak galvanostatic polarization to study localized corrosion stability in stainless steel10.1016/0010-938X(94)90060-4 ↗
36. A comprehensive modelling and experimental approach to study the diffusion-controlled dissolution in pitting corrosion
37. Pitting corrosion of bare stainless steel 304 under chloride solution droplets10.1149/1.3467850 ↗
38. Pit growth studies in stainless steel foils. I. Introduction and pit growth kinetics10.1016/S0010-938X(01)00133-0 ↗
39. 2-Dimensional Simulations of Pit Propagation and Multi-Pit Interactions
40. An experimental confirmation of the pitting potential model of galvele10.1016/0010-938X(88)90069-8 ↗