Corrosion product concentration in a single three-dimensional pit and the associated pitting dynamics
Source abstract
Abstract
Abstract A single three-dimensional pit was generated on one electrode at different polarization potentials, and its inner corrosion product concentration was evaluated by inductively coupled plasma emission spectrometry (ICP-OES) and three-dimensional microscope. The openness of pit increased with increasing pit volume and rising potential. The pit inner corrosion product concentration decreased with increasing pit volume and rising potential. Higher potentials resulted in a bigger pitting current density. Pit formed at higher potentials showed a lower pit inner corrosion product concentration and a faster growing rate, indicating that pit growth rate was mainly determined by applied potential rather than mass transfer process.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Corrosion Behavior and Inhibition · Non-Destructive Testing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. Corrosion behaviour of 316H stainless steel in molten FLiNaK eutectic salt containing graphite particles10.1016/j.corsci.2019.108174 ↗
2. Pit initiation on sensitized Type 304 stainless steel under applied stress: correlation of stress, Cr-depletion, and inclusion dissolution10.1016/j.corsci.2020.108506 ↗
3. Experimental design to study the influence of temperature, pH, and chloride, concentration on the pitting and crevice corrosion of UNS S30403 stainless steel10.1016/j.corsci.2019.108160 ↗
4. The Electrochemical Behaviour of Incoloy 800 and AISI 304 Steel in Solutions That are Similar to Those Within Occluded Corrosion Cells10.1016/0010-938X(88)90115-1 ↗
5. Origins of pitting corrosion10.1179/147842204225016859 ↗
6. The nucleation and growth of corrosion pits on stainless steel10.1016/0010-938X(93)90133-2 ↗
7. Pit growth studies in stainless steel foils. I. Introduction and pit growth kinetics10.1016/S0010-938X(01)00133-0 ↗
8. Explanation of the effect of high chloride concentration on the critical pitting temperature of stainless steel10.1016/j.corsci.2007.03.026 ↗
9. Evolution of current transients and morphology of metastable and stable pitting on stainless steel near the critical pitting temperature10.1016/j.corsci.2005.03.002 ↗
10. Explanation of the effect of high chloride concentration on the critical pitting temperature of stainless steel10.1016/j.corsci.2007.03.026 ↗
11. Metastable pitting corrosion of 304 stainless steel in 3.5% NaCl solution10.1016/j.corsci.2014.04.033 ↗
12. Effects of applied potential on stable pitting of 304 stainless steel10.1016/j.corsci.2015.01.034 ↗
13. Aspects of the effects of electrolyte composition on the occurrence of metastable pitting on stainless steel10.1016/0010-938X(94)90041-8 ↗
14. Metastable pitting corrosion of stainless steel and the transition to stability
15. Prediction of maximum pit sizes in elevated chloride concentrations and temperatures10.1149/2.0451911jes ↗
16. Diffusion-coupled active dissolution in the localized corrosion of stainless steels10.1149/1.2120048 ↗
17. Studies on accumulation of chloride ions in pits growing during anodic polarization10.1016/0010-938X(75)90015-3 ↗
18. The determination of pH, potential and chloride concentration in corroding crevices on 304 stainless steel and 7475 aluminium alloy10.1016/0010-938X(87)90088-6 ↗
19. Measurement of pH Gradients in the Crevice Corrosion of Iron Using a Palladium Hydride Microelectrode10.1149/1.1851053 ↗
20. Simultaneous visualization of pH and Cl− distributions inside the crevice of stainless steel10.1016/j.corsci.2016.01.028 ↗
21. In situ X-Ray microprobe study of salt layers during anodic dissolution of stainless steel in chloride solution10.1149/1.2044138 ↗
22. Further modeling of chloride concentration and temperature effects on 1D pit growth10.1149/2.0281614jes ↗
23. Modeling and simulation of pit chemistry of 304 austenitic stainless steel under applied stress in sodium chloride solution10.1016/j.nucengdes.2013.01.019 ↗
24. Dissolution and Repassivation Kinetics of Fe-Cr Alloys in Pit Solutions I. Effect of The Surface Salt Layer10.1149/1.2056137 ↗
25. 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 ↗
26. Cr(III) and Fe(II) recovery from the polymetallic leach solution of electroplating sludge by Cr(III)-Fe(III) coprecipitation on maghemite10.1016/j.hydromet.2018.11.013 ↗