The formation of pitting under dynamic DC interference: Corrosion product film defects or passive film induction
Source abstract
Abstract
The cause of pitting under dynamic DC interference is unclear. This paper studies the mechanisms of pitting in simulated solutions under neutral and alkaline conditions using weight loss, electrochemical testing, and microscopic characterization. The results indicate that the metal mainly undergoes active corrosion in the neutral solution, and the formation of millimeter-scale pits is due to local defects in corrosion products. Metals in the alkaline solution undergo passive corrosion, resulting in micro-scale pits. Initially, stable pits form at damaged areas of the passivation film. Then, pits can grow rapidly under self-catalysis, with the growth rate surpassing other surface locations.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Hydrogen embrittlement and corrosion behaviors in metals · Concrete Corrosion and Durability
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (57)
Show source-provided references
1. On the interference mechanism of stray current generated by DC tram on pipeline corrosion10.1016/j.engfailanal.2020.104760 ↗
2. Effects of vehicle running mode on rail potential and stray current in DC mass transit systems10.1109/TVT.2013.2265093 ↗
3. X. Yu, R. Zhang, A. Yuan, G. Cui, J. Liu, X. Xing, Z. Li, Effect of simplified waveforms of pipe-to-soil potential fluctuation on pitting behavior of pipeline steel, in: Proceedings of the Second International Conference on Electrical Engineering and Control Science (2022) 1039-1042.10.1109/IC2ECS57645.2022.10087975 ↗
4. Novel predictive model for metallic structure corrosion status in presence of stray current in DC mass transit systems10.1007/s11771-014-2024-2 ↗
5. Effect of dynamic DC stray current on corrosion behavior of X70 steel10.1002/maco.201911022 ↗
6. Evaluation of DC-subway stray current corrosion with integrated multi-physical modeling and electrochemical analysis10.1109/ACCESS.2019.2953960 ↗
7. K. Akpanyung, R. Loto, Pitting corrosion evaluation: a review, in: Proceedings of the International Conference on Engineering for Sustainable World 1378 (2019) 022088.10.1088/1742-6596/1378/2/022088 ↗
8. A review—pitting corrosion initiation investigated by TEM10.1016/j.jmst.2019.01.013 ↗
9. In-situ characterization of the electrochemistry of grain and grain boundary of an X70 steel in a near-neutral pH solution10.1016/j.elecom.2010.04.025 ↗
10. Influence of inclusions on initiation of pitting corrosion and stress corrosion cracking of X70 steel in near-neutral pH environment10.1016/j.corsci.2018.11.007 ↗
11. Characterization of inclusions of X80 pipeline steel and its correlation with hydrogen-induced cracking10.1016/j.corsci.2010.12.011 ↗
12. Explanation for initiation of fitting corrosion of stainless steels at sulfide inclusions10.1149/1.1393431 ↗
13. Fundamentals of hydrogen evolution reaction and its implications on near-neutral pH stress corrosion cracking of pipelines10.1016/j.electacta.2006.09.024 ↗
14. Understand the occurrence of pitting corrosion of pipeline carbon steel under cathodic polarization10.1016/j.electacta.2011.11.051 ↗
15. Derivation of the mechanistic relationship of pit initiation on pipelines resulting from cathodic protection potential fluctuations10.1016/j.corsci.2019.108226 ↗
16. Effect of cathodic protection potential fluctuations on pitting corrosion of X100 pipeline steel in acidic soil environment10.1016/j.corsci.2018.08.040 ↗
17. Sudden onset of pitting corrosion on stainless steel as a critical phenomenon
18. Pitting corrosion behavior of X70 steel in weakly alkaline solution under dynamic DC interference10.1016/j.conbuildmat.2023.131406 ↗
19. Current and potential transients during localized corrosion of stainless steel10.1149/1.2114104 ↗
20. Metastable pitting corrosion of stainless steel and the transition to stability
21. Electrochemical state conversion model for occurrence of pitting corrosion on a cathodically polarized carbon steel in a near-neutral pH solution10.1016/j.electacta.2011.01.100 ↗
22. Understand the AC induced pitting corrosion on pipelines in both high pH and neutral pH carbonate/bicarbonate solutions10.1016/j.corsci.2014.04.030 ↗
23. Corrosion behavior of low-Cr steel rebars in alkaline solutions with different pH in the presence of chlorides10.1016/j.jelechem.2017.09.016 ↗
24. Chloride-induced stray current corrosion of Q235A steel and prediction model10.1016/j.conbuildmat.2019.05.113 ↗
25. Segmenting localized corrosion from rust-removed metallic surface with deep learning algorithm10.1117/1.JEI.28.4.043019 ↗
26. Anti-corrosion characteristics of FeCO3 and FexCayMgzCO3 scales on carbon steel in high-PT CO2 environments
27. Effect of impurity on the corrosion behavior of X65 steel in water-saturated supercritical CO2 system10.1016/j.supflu.2016.05.006 ↗
28. Synergistic effect of O2, H2S and SO2 impurities on the corrosion behavior of X65 steel in water-saturated supercritical CO2 system10.1016/j.corsci.2016.02.017 ↗
29. Effect of alternating current on stress corrosion cracking behavior and mechanism of X80 pipeline steel in near-neutral solution10.1016/j.jngse.2017.01.008 ↗
30. Effects of corrosion product deposit on the subsequent cathodic and anodic reactions of X-70 steel in near-neutral pH solution10.1016/j.corsci.2008.08.026 ↗
31. Experimental research on the corrosion of X series pipeline steels under alternating current interference10.1016/j.engfailanal.2017.03.003 ↗
32. Cathodic protection and DC non-stationary anodic interference10.1016/j.jngse.2020.103497 ↗
33. Electrochemical polarization behavior of X70 steel in thin carbonate/bicarbonate solution layers trapped under a disbonded coating and its implication on pipeline SCC10.1016/j.corsci.2010.03.019 ↗
34. Synthesis of green rusts by oxidation of Fe(OH)2, their products of oxidation and reduction of ferric oxyhydroxides; Eh-pH Pourbaix diagrams10.1016/j.crte.2006.04.004 ↗
35. In situ synchrotron X-ray diffraction study of scale formation during CO2 corrosion of carbon steel in sodium and magnesium chloride solutions10.1016/j.corsci.2011.11.017 ↗
36. On the fundamentals of electrochemical corrosion of X65 steel in CO2 containing formation water in the presence of acetic acid in petroleum production10.1016/j.corsci.2008.10.013 ↗
37. Reactions of pipeline steels in carbon dioxide solutions10.1016/S0010-938X(98)00104-8 ↗
38. Removal of phenol from aqueous solution by adsorption onto hematite (α-Fe2O3): mechanism exploration from both experimental and theoretical studies10.1016/j.arabjc.2020.03.026 ↗
39. The passivation of iron in carbonate/bicarbonate solutions10.1016/S0022-0728(74)80204-4 ↗
40. An XPS characterization of FeCO3 films from CO2 corrosion10.1016/S0010-938X(98)00180-2 ↗
41. Accelerated corrosion of pipeline steel and reduced cathodic protection effectiveness under direct current interference10.1016/j.conbuildmat.2017.05.024 ↗
42. New findings on the factors accelerating AC corrosion of buried pipeline10.1016/j.corsci.2013.09.005 ↗
43. Effect of anodic dissolution and passivation on X80 steel in NaHCO3 solution10.1007/s12182-020-00532-z ↗
44. Electrochemical characterization of mild steel in alkaline solutions simulating concrete environment10.1016/j.jelechem.2014.10.023 ↗
45. The effect of bicarbonate on the corrosion and passivation of iron10.5006/0010-9312-36.8.416 ↗
46. Revised pourbaix diagrams for iron at 25-300 ℃10.1016/S0010-938X(96)00067-4 ↗
47. Corrosion of pipelines under dynamic direct current interference10.1016/j.conbuildmat.2020.120550 ↗
48. Corrosion protection of petroleum pipelines in NaCl solution by microcrystalline waxes from waste materials: electrochemical studies10.1016/j.corsci.2017.03.022 ↗
49. Effect of Cl- ion on the impedance of passive-film-covered lectrodes
50. The passive behaviour of AISI 316 in alkaline media and the effect of pH: a combined electrochemical and analytical study10.1016/j.electacta.2009.10.026 ↗
51. Convolutive modeling of cyclic voltammetry, AC-voltammetry, sine wave voltammetry and impedance spectroscopy with interfacial CPE behaviour and uncompensated ohmic resistances: a unified theory10.1016/j.electacta.2021.139006 ↗
52. Conversion of a constant phase element to an equivalent capacitor10.33961/jecst.2020.00815 ↗
53. Uniformity of passivation films formed on ferrite and martensite by different inorganic inhibitors10.1016/S0010-938X(01)00178-0 ↗
54. Studies of water transport behavior and impedance models of epoxy-coated metals in NaCl solution by EIS10.1016/j.porgcoat.2004.08.001 ↗
55. Mechanism of pit nueleation by electrical breakdown of the passivation film10.1016/S0010-938X(01)00113-5 ↗
56. Determination of effective capacitance and film thickness from constant-phase-element parameters10.1016/j.electacta.2009.10.065 ↗
57. Electron transfer across anodic films formed on tin in carbonate-bicarbonate buffer solution10.1016/j.electacta.2004.08.008 ↗