Relation Between Open Circuit Potential and Polarization Resistance with Rust and Corrosion Monitoring of Mild Steel

Choudhary, S.; Garg, Ashish; Mondal, K.

doi:10.1007/s11665-016-2112-6

Cited by 86 publications

(28 citation statements)

References 35 publications

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“…The reduction of the slope was thought to occur due to the losses of metal reactivity over time. S355 corrosion generated products that were deposited on surfaces and impeded the oxygen access to the bare metal, hence reduced the corrosion reaction (Shreir et al 2010) (Choudhary et al 2016).…”

Section: Electrochemical Analysismentioning

confidence: 99%

iWindCrfield trial and electrochemical analysis for corrosion detection and monitoring offshore wind turbine’s MP-TP steel components

Simandjuntak

Bausch

Farrar

et al. 2021

Journal of Marine Engineering & Technology

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A Proof-of-Concept (POC) low power-low current wireless sensor network (WSN) for corrosion detection and monitoring of offshore wind turbine (OWT)'s component, entitled iWindCr, has been developed and field trialled in one of the OWTs in the UK south region. This paper reports on the setting up and outcomes of this field trial. The trial has successfully demonstrated the working functionality of the WSN by measuring changes of the Open Circuit Potential (OCP) and Zero Resistance Ammeter (ZRA) electrochemical parameters over a period of time. The state of corrosion and estimated life of an M72 galvanised steel stud, part of the Monopile (MP)transition piece (TP) flanged connection were evaluated using the real-time data from the WSN with reference to the material's corrosion thresholds from the iWindCr database. The paper details the electrochemical analysis processes in relation to the Electrochemical Impedance Spectroscopy (EIS), Potentiodynamic Polarisation Curve (PPC) in addition to the OCP and ZRA techniques. The electrochemical parameters and corrosion threshold values from seawater immersion tests of the steel alloys SS316L and S355, the typical MP-TP materials are presented.

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Section: Electrochemical Analysismentioning

confidence: 99%

iWindCrfield trial and electrochemical analysis for corrosion detection and monitoring offshore wind turbine’s MP-TP steel components

Simandjuntak

Bausch

Farrar

et al. 2021

Journal of Marine Engineering & Technology

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“…At this point its OCP plot aligns with the OCP plot for S409 which initiated at −0.520 V after which they both progressed to higher (positive) potentials and culminated at −0.490 V and −0.488 V (5400s). The gradual increase in potential occurs from the evolution of inert oxide layer responsible for corrosion protection (Bacelis et al, 2021;Choudhary et al, 2016). However, the relatively lower potential plots of S409 and S430 compared to S316 and S444 shows the extent of protection against the electrochemical action of SO 4 2and Cl − anions is significantly lower.…”

Section: Open Circuit Potential Measurementmentioning

confidence: 99%

Effect of cyclic high temperature fluctuations on the corrosion failure of S40900, S43036, S31635 and S44400 stainless steels

Loto

2021

Cogent Engineering

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Corrosion resistance of untreated S40900, S43036, S44400 and S31635 stainless steels (S409, S430, S444 and S316) in 0.05 M H 2 SO 4 /3.5% NaCl solution was investigated and compared to their heat-treated counterparts after cyclic temperature variation between 1000°C and 37°C by potentiodynamic polarization, potentiostatic analysis, open circuit potential measurement and optical microscopy. Results showed untreated S409 exhibited the weakest resistance to corrosion at 8.406 mm/y while untreated S316 displayed the highest resistance at 1.581 mm/y. Cyclic heat treatment caused significant increase in corrosion rate of untreated S409, S430 and S444 by 21.92%, 38.46% and 94.76%. Corrosion rate of untreated S316 decreased by 69% to 0.490 mm/y. Untreated and heat-treated S316 exhibited the least metastable pitting tendency while heat-treated S409 and S430 exhibited the highest. Untreated S444 showed the highest tendency to passivate compared to heat-treated S409 and S430 with the lowest tendency. Heat treatment generally improved passivation rate, but not passivation resilience. Untreated S444 and heat-treated S430 exhibited the widest passivation range. Heat treatment increased the tendency for pit formation on the steels.

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“…It is seen that the system reaches equilibrium position at 1,200th second about À0.961 V and the oxide layer is formed on the surface. There are studies in the literature where corrosion behaviour is measured with OCP and according to these studies, it is revealed that dissolution of the oxide layer on the surface changes steady-state potential to the negative direction and formation of the oxide layer causes the surface passivity and steady-state potential goes to the positive direction (Wang et al, 2017;Choudhary et al, 2016;Sun et al, 2017).…”

Section: X-ray Diffraction Measurementsmentioning

confidence: 99%

Corrosion behaviour of twin-roll cast 8006 aluminium alloy foil with different thicknesses for the food packaging industry

Eken

Sarıoğlu

Küçük

2021

JEDT

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Purpose The purpose of this paper is to investigate and find out the surface and electrochemical behaviours of twin roll cast (TRC) 8006 aluminium alloy with different thicknesses due to the cold rolling rates after the TRC process. Design/methodology/approach The 8006 aluminium alloys are mostly used for the food packaging industry, as they are corrosion resistant, lightweight and shapable materials. The present work investigates the surface and corrosion behaviours of 8006 aluminium alloys at different thicknesses. TRC aluminium alloys were cold-rolled at two different reduction rates before investigation. X-ray diffraction (XRD) and energy dispersive spectroscopy (EDX) tests were used to examine the phase and elemental analyses. FE-SEM and 3D profilometry also used to observe surface morphology. Open circuit potential (OCP), potentiodynamic polarization and electrochemical impedance spectroscopy tests (EIS) were carried out to find out corrosion behaviours. The results show that the more cold rolling reduction (CRR), the more corrosion rate and surface affection of the TRC 8006 aluminium alloys. Findings According to the electrochemical tests (OCP, potentiodynamic polarization test and EIS) and surface morphology results (such as SEM, 3D profilometry and XRD) the more the rolling rate the less the corrosion resistance. Originality/value First corrosion behaviour investigation of twin-rolled 8006 Al alloys using electrochemical techniques. First investigation of CRR effects on electrochemical corrosion behaviour of 8006 Al alloys with 3.5 wt.% NaCl solution using EIS. First investigation of 8006 Al alloys as a food packaging material with electrochemical ways.

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Relation Between Open Circuit Potential and Polarization Resistance with Rust and Corrosion Monitoring of Mild Steel

Cited by 86 publications

References 35 publications

iWindCrfield trial and electrochemical analysis for corrosion detection and monitoring offshore wind turbine’s MP-TP steel components

iWindCrfield trial and electrochemical analysis for corrosion detection and monitoring offshore wind turbine’s MP-TP steel components

Effect of cyclic high temperature fluctuations on the corrosion failure of S40900, S43036, S31635 and S44400 stainless steels

Corrosion behaviour of twin-roll cast 8006 aluminium alloy foil with different thicknesses for the food packaging industry

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