To examine the macro-galvanic corrosion of carbon steel near the air–liquid interface, a test panel of array electrodes was developed for investigating the corrosion behaviour in NaCl solution and wet soil environment. The corrosion rates were evaluated by electrochemical approaches and verified by the corrosion exposure tests. The analysis focused on the interaction between the macrocell and microcell according to the ZRA, EIS, and OCP measurements. Test results reveal that the coexisting of macrocell and microcell corrosion would change the position of maximum corrosion, and it was inferred the relationship of actual current density and microcell current density. In addition, the wet soil environment shows both microcell and macrocell corrosion near the air–liquid interface should be more severe than that in an iso-concentrated NaCl aq environment, whereas its macro-galvanic interaction of steel at the deep region should be smaller due to the low-diffusion rate in the soil environment.
KainumaSYangMIshiharaS.Corrosivity evaluation for steel members near the atmosphere–liquid interface using the ground corrosion sensor. Zairyo-to-Kankyo. 2018; 67: 404–415. (in Japanese).
2.
KainumaSYangM.Corrosivity evaluation of steel members near the air–liquid interface using a ground corrosion sensor, 17th International Conference on Fracture and Damage Mechanics, Spain. Key Eng Mater2018; 774: 619–624.
3.
GubnerRJ.Biofilms and accelerated low-water corrosion of carbon steel piling in tidal waters. Portsmouth: University of Portsmouth; 1998.
4.
BreakellJEForsterKSiegwartM.Management of accelerated low water corrosion in steel marintime structures. London: Ciria; 2005.
5.
MoulinJMMarshEChaoWT. Prevention of accelerated low-water corrosion on steel piling structures due to microbially influenced corrosion mechanisms. EUR. 2001; 20043: 1–139.
6.
CampbellSABeechIB. Accelerated low water corrosion: causes and consequences. 49th Annual Conference of the Australasian Corrosion Association: Corrosion and Prevention; 2009. pp. 40-49.
7.
BeechIBCampbellSA.Accelerated low water corrosion of carbon steel in the presence of a biofilm harbouring sulphate-reducing and sulphur-oxidising bacteria recovered from a marine sediment. Electrochim Acta. 2008; 54: 14–21.
8.
JeffreyRMelchersRE.Corrosion of vertical mild steel strips in seawater. Corros Sci. 2009; 51: 2291–2297.
9.
MelchersREJeffreyR.Accelerated low water corrosion of steel piling in harbours. Corros Eng Sci Technol. 2013; 48: 496–505.
10.
MelchersREJeffreyR.Corrosion of long vertical steel strips in the marine tidal zone and implications for ALWC. Corros Sci. 2012; 65: 26–36.
11.
EvansUR.Report on corrosion research work at Cambridge University interrupted by the outbreak of war. J Iron Steel Inst1940; 141: 219.
12.
TomashovND.The theory of corrosion and protection of metals. New York: MacMillan; 1966. 469.
13.
KawahigashiTKobayashiKMiyagawaT.A study of macro-cell and micro-cell corrosion of steel in concrete. Doboku Gakkai Ronbunshu. 2003; 732: 1–15.
14.
RaupachM.Chloride-induced macrocell corrosion of steel in concrete-theoretical background and practical consequences. Constr Build Mater. 1996; 10: 329–338.
15.
LewisDACopenhagenWJ.Corrosion of reinforcing steel in concrete in marine atmospheres. Corrosion. 1959; 15: 382t–388t.
16.
JiYSZhaoWZhouM. Corrosion current distribution of macrocell and microcell of steel bar in concrete exposed to chloride environments. Constr Build Mater. 2013; 47: 104–110.
17.
QianSZhangJQuD.Theoretical and experimental study of microcell and macrocell corrosion in patch repairs of concrete structures. Cem Concr Compos. 2006; 28: 685–695.
18.
CastroPPaziniEAndradeC. Macrocell activity in slightly chloride-contaminated concrete induced by reinforcement primers. Corrosion. 2003; 59: 535–546.
19.
SongG.Theoretical analysis of the measurement of polarisation resistance in reinforced concrete. Cem Concr Compos. 2000; 22: 407–415.
20.
TanY.Monitoring localized corrosion processes and estimating localized corrosion rates using a wire-beam electrode. Corrosion. 1998; 54: 403–413.
21.
XuYTanY.Probing the initiation and propagation processes of flow accelerated corrosion and erosion corrosion under simulated turbulent flow conditions. Corros Sci. 2019; 151: 163–174.
22.
XuYTanYHuangY.The study of waterline corrosion in static and dynamically flowing electrolytes using multi-electrode sensor in combination with electrical resistance method. Proceedings of the Corrosion and Prevention Conference. 2018; 1: 1–9.
23.
MochizukiN.Electrochemical measurements in various environments–evaluation method of cathodic protection condition for carbon steel in seawater. Zairyo-to-Kankyo. 2018; 67: 311–317. (in Japanese).
24.
SternMGearyALElectrochemical polarizationI.A theoretical analysis of the shape of polarizationi curves. J Electrochem Soc. 1957; 104: 56–63.
25.
TsuruTMaedaRHaruyamaS.Application of A/C corrosion monitor to localized corrosion. Zairyo to Kankyo. 1979; 28: 638–644.
26.
TsuruTHaruyamaS.Corrosion monitor based on impedance method: construction and its application to homogeneous corrosion. Zairyo to Kankyo. 1978; 27: 573–579. (in Japanese).
27.
ZouYWangJZhengYY.Electrochemical techniques for determining corrosion rate of rusted steel in seawater. Corros Sci. 2011; 53: 208–216.
28.
TomashovND.Atmospheric corrosion of metals. New York: MacMillan; 1966. p. 367.
29.
NishikataAIchiharaYTsuruT.An application of electrochemical impedance spectroscopy to atmospheric corrosion study. Corros Sci. 1995; 37: 897–911.
30.
NishikataAIchiharaYTsuruT.Electrochemical impedance spectroscopy of metals covered with a thin electrolyte layer. Electrochim Acta. 1996; 41: 1057–1062.
31.
ColeISGantherWDSinclairJD. A study of the wetting of metal surfaces in order to understand the processes controlling atmospheric corrosion. J Electrochem Soc. 2004; 151: B627–B635.
32.
ChungKWKimKB.A study of the effect of concentration build-up of electrolyte on the atmospheric corrosion of carbon steel during drying. Corros Sci. 2000; 42: 517–531.
33.
SongGJohannessonBHapugodaS. Galvanic corrosion of magnesium alloy AZ91D in contact with an aluminium alloy, steel and zinc. Corros Sci. 2004; 46: 955–977.
34.
MelvillePH.Distribution of potential around a scratch in a passive film. J Electrochem Soc. 1979; 126: 2081–2085.
35.
MelvillePH.Effect of the distribution of current within a pit on the variation in potential in the vicinity of the pit. J Electrochem Soc. 1980; 127: 864–868.
36.
SubramaniamKVBiM.Investigation of steel corrosion in cracked concrete: evaluation of macrocell and microcell rates using Tafel polarization response. Corros Sci. 2010; 52: 2725–2735.
37.
HuangHTianJZhangGA. The corrosion of X52 steel at an elbow of loop system based on array electrode technology. Mater Chem Phys. 2016; 181: 312–320.
38.
PengXWangJShanC. Corrosion behaivor of long-time immersed rusted carbon steel in flowing seawater. Acata Metall Sin. 2012; 48: 1260–1266.
39.
XieJAlpasATNorthwoodDO.Mechano-electrochemical effect between erosion and corrosion. J Mater Sci. 2003; 38: 4849–4856.
40.
SheirLLJarmanRABursteinGT.Corrosion: metal/environment reactions. London: Newnes-Butterworths8; 1994. pp. 3–8.
41.
MansfeldF.Area relationships in galvanic corrosion. Corrosion. 1971; 27: 436–442.
42.
NishikataA.Electrochemical measurements under thin solution films and the application to atmospheric corrosion study. Zairyo-to-Kankyo. 2016; 65: 120–126.
43.
ShinoharaT.Evaluation methods for atmospheric corrosion. Hyomen Kagaku. 2015; 36: 4–11.
44.
ShiYTadaENishikataA.A method for determining the corrosion rate of a metal under a thin electrolyte film. J Electrochem Soc2015; 162: C135–C139.
45.
SinghR.Corrosion control for offshore structures: cathodic protection and high-efficiency coating. Oxford: Gulf Professional Publishing; 2014.
46.
MatsuokaKYamamotoMGotoK.Analysis for macro-cell corrosion phenomena of steels exposed in seawater. Zairyo to Kankyo. 2007; 56: 99–105.
47.
MelchersREJeffreyR.Early corrosion of mild steel in seawater. Corros Sci. 2005; 47: 1678–1693.
48.
MelchersRE.Predicting long-term corrosion of metal alloys in physical infrastructure. npj Mater Degrad. 2019; 3: 1–7.
49.
KlinesmithDEMcCuenRHAlbrechtP.Effect of environmental conditions on corrosion rates. J Mater Civ Eng. 2007; 19: 121–129.
50.
SternM.A method for determining corrosion rates from linear polarization data. Corrosion. 1958; 14: 60–64.
51.
YangMKainumaSSunX. Electrochemical evaluation on corrosion rate of common steel near the air-liquid interface using an immersion sensor. East Asia & Pacific Area Conference & Expo; 2019; Yokohama, Japan.
