Corrosion Behavior of Pipeline Carbon Steel under Different Iron Oxide Deposits in the District Heating System

Kim, Yong−Sang; Kim, Jung-Gu

doi:10.3390/met7050182

Cited by 47 publications

(16 citation statements)

References 48 publications

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“…The oxidation and reduction reactions of magnetite can occur as following reactions [30,31,32,33]:Fe 3 O 4 + OH − + 4H 2 O → 3Fe(OH) 3 (s) + e − (oxidation reaction) Fe 3 O 4 + OH − + 4H 2 O + 2e − → 3Fe(OH) 3 − (reductive dissolution reaction)…”

Section: Resultsmentioning

confidence: 99%

Galvanic Corrosion of SA106 Gr.B Coupled with Magnetite in Alkaline Solution at Various Temperatures

et al. 2019

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The effect of temperature on the galvanic corrosion behavior of SA106 Gr.B carbon-manganese steel was studied in an alkaline aqueous solution at various temperatures (30, 60, and 90 °C) via electrochemical corrosion tests. At all temperatures studied, carbon-manganese steel acted as the anode of the galvanic cell composed of carbon-manganese steel and magnetite because the corrosion potential of carbon-manganese steel was significantly lower than that of magnetite. The corrosion current density of carbon-manganese steel significantly increased due to the galvanic effect irrespective of temperature used in this study. With the increase in temperature, the extent of the galvanic effect on the corrosion current density of carbon-manganese steel and reductive dissolution of magnetite gradually increased. When the area ratio of magnetite to carbon-manganese steel increased, the corrosion rate of the carbon-manganese steel in contact with magnetite further increased.

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Section: Resultsmentioning

confidence: 99%

Galvanic Corrosion of SA106 Gr.B Coupled with Magnetite in Alkaline Solution at Various Temperatures

et al. 2019

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“…6b-c. The FeO(OH) (ICDD 01-081-0462), Fe3O4 and Fe2O3 were found to form on the surface, with around 75 wt.% MEA at 100:1 additions by volume in the test solution (Fig .6c) [18,19]. This could be enough O2.…”

Section: Resultsmentioning

confidence: 98%

Effect of Monoethanolamine on Corrosion of A283 Carbon Steel in Propionic Acid Solution

Lakkanasri¹,

Lothongkum²

2019

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This research studied the effect of monoethanolamine or MEA on corrosion of A283 carbon steels both in water and 5 vol.% propionic acid solution at boiling point temperature of solution. MEA concentrations ranging from 30 to 90 wt.% in water was used. The 5 vol.% propionic acid containing around 45 and 75 wt.% MEA additions (100:1 and 100:5) by volume in the test solution was studied. The carbon steel coupons were tested in a liquid phase, liquid and vapor phase and vapor phase. The weight losses of coupons were evaluated to calculate corrosion rate. A scanning electron microscope and X-ray diffraction were used to characterize the corrosion surface of coupons. The results showed that the corrosion rate order was in the liquid phase > in the liquid and vapor phase > in the vapor phase. MEA decreased the corrosion rate of A283 carbon steel both in water and 5 vol.% propionic acid solution containing around 45 and 75 wt.% MEA additions (100:1 and 100:5) by volume. MEA can be considered as corrosion inhibitor of carbon steel both in water and propionic acid solution. The formed layers of FeO(OH), Fe2O3 and Fe3O4 on the surface were detected to prevent a corrosion attack. The formed layer of Fe3C was also found and discussed. The more severe corrosion was in ferrite.

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“…Therefore, in the presence of APE, the major part of corrosion product layer is converted to Fe 2 O 3 from Fe 3 O 4 . It is known that Fe 2 O 3 is more corrosionresistant than Fe 3 O 4 [39]. As such, one of the reasons that APE3 has a less corrosion rate than APE0 is the catalytic effect of APE in converting Fe 3 O 4 to Fe 2 O 3 in corrosion surface layer.…”

Section: Epma Resultsmentioning

confidence: 99%

Mechanism of corrosion protection in chloride solution by an apple-based green inhibitor: experimental and theoretical studies

Nazari

Shihab

Havens

et al. 2020

J Infrastruct Preserv Resil

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Preservation of metals in infrastructures and other assets requires cost-effective and sustainable solutions such as green corrosion inhibitors. This study assesses an apple pomace-derived green inhibitor synthesized by an innovative zero-waste method. Electrochemical measurements revealed the high performance of this liquid extract in reducing the corrosion of carbon steel in NaCl brine. The chemical composition of this inhibitor was characterized by liquid chromatography mass spectroscopy (LC-MS) to shed light on the corrosion inhibition mechanism. Based on LC-MS analysis, the results of surface analysis were interpreted. Specifically, the major corrosion inhibitor agent in the apple pomace extract was determined as C 26 H 50 NO 7 P (1-Linoleoylsn-glycero-3-phosphocholine), which can adsorb onto the steel surface to form a barrier layer and serve as a blocker of active anodic sites. Further study showed that the apple extract adsorption follows the Langmuir isotherm, and physical adsorption is dominant (vs. chemical adsorption). Theoretical calculations using quantum chemistry proposed a physisorption mechanism for the protection of steel by C 26 H 50 NO 7 P molecules.

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Corrosion Behavior of Pipeline Carbon Steel under Different Iron Oxide Deposits in the District Heating System

Cited by 47 publications

References 48 publications

Galvanic Corrosion of SA106 Gr.B Coupled with Magnetite in Alkaline Solution at Various Temperatures

Galvanic Corrosion of SA106 Gr.B Coupled with Magnetite in Alkaline Solution at Various Temperatures

Effect of Monoethanolamine on Corrosion of A283 Carbon Steel in Propionic Acid Solution

Mechanism of corrosion protection in chloride solution by an apple-based green inhibitor: experimental and theoretical studies

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