Corrosion behavior of carbon steel in chloride and bicarbonate ion‐enriched and CO<sub>2</sub>‐saturated solutions

Wu, Min; Zhang, Shaohua; Hou, Lifeng; Du, Hao; Yin, Ming; Pu, Yang; Liu, Baosheng; Wei, Yinghui

doi:10.1002/maco.202011587

Cited by 15 publications

(2 citation statements)

References 47 publications

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“…Moreover, the peak values of capacitance (Q-Y 0 ) and surface resistance (R p ) of Q345A and 45# steels occurred under the condition C. Compared with other conditions, the corrosion rate of the two metals was low at this time. By comparing the capacitance (Q-Y 0 ) and surface resistance (R p ) of the four metals, it can be seen that under different conditions, the corrosion products of Q235A were the densest and can play a certain protective role [23][24][25]. Focusing on the electrochemical reaction process, the corrosion of Q235A and 3Cr13 steels was aggravated with the increase of CO 2 and CH 4 content, which was manifested by the decrease of charge-transfer resistance (R ct ).…”

Section: Eis Analysismentioning

confidence: 99%

Study on the failure analysis of four metals for anaerobic fermentation reactor based on numerical simulation and electrochemical method

Wang

2023

Mater. Res. Express

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The core problem of low energy consumption anaerobic fermentation reactor is that the reactor can make reasonable and effective use of energy from two aspects of quantity and quality, so as to ensure the anaerobic fermentation performance of the reactor and make it run efficiently and energy-saving. However, serious corrosion of metal for reactors was found during operation, and the selection of reactor materials became the key to restrict biogas production. In this paper, the corrosion characteristics of the four metals including Q235A steel, Q345A steel, 45# steel and 3Cr13 steel were determined by corrosion morphology, mechanical and electrochemical experiments. The results showed that the corrosion product particles of Q235A steel were polygonal, showing a good cross-linking feature, which was better than that of Q345A and 45# steels. However, there was no obvious boundary between corrosion product particles of 3Cr13 steel. The presence of Fe3C in the corrosion products of 3Cr13 steel and the observation of micro-cracks on the surface at nanometer scale indicated that the intergranular corrosion of 3Cr13 steel was dominated. For another aspect, with the increase of CO2 and CH4 content, the corrosion rate of the four metals was generally accelerated, in which the Q235A steel showed the best performance under different conditions. In addition, Q345A and 45# steels showed relatively good corrosion resistance, under which the total mole of mixed gas (CO2/H2O/CH4) was lowest.

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Section: Eis Analysismentioning

confidence: 99%

Study on the failure analysis of four metals for anaerobic fermentation reactor based on numerical simulation and electrochemical method

Wang

2023

Mater. Res. Express

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“…The polarization behavior of the steel in these electrolytes agreed with studies conducted in similar environments. [33][34][35][36][37][38]…”

Section: The Polarization Behavior Of the Steel Used In The Galvanic ...mentioning

confidence: 99%

Contribution of galvanic coupling with TiN, TiAlN, and CrN to the corrosion of steel in neutral and acidic chloride solutions

Avcı

Kazmanlı

Evren

et al. 2023

Materials & Corrosion

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The inherent defective morphology of the physical vapor deposition (PVD) hard coatings limits their corrosion protective ability. We examined the impact of nitride‐based PVD coatings, including TiN, TiAlN, and CrN deposited on inert substrates by cathodic arc PVD method (CA‐PVD), on the galvanic corrosion of carbon steel. Their contribution was evaluated by zero‐resistance ammeter (ZRA) and electrochemical impedance spectroscopy (EIS) in 3.5 wt.% NaCl at pH 2 and 6, with and without aeration. The results indicated the prominent role of the coating type and the coupling environment on the generated galvanic currents. Immersion tests for the TiN‐, TiAlN‐, and CrN‐coated steel cross‐sections visually verified these results. The galvanic current contribution was distinct in environments where oxygen reduction is the dominant cathodic reaction. However, the layers' contribution to galvanic corrosion was minimal in deaerated acidic solutions, which is attributed to the high bonding strength of adsorbed intermediates to the coating surfaces.

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Effect of SO42− in aerobic/anaerobic environment and its interaction with HCO3− on corrosion behavior of carbon steel

Gao,

Wang,

Han

2024

J Mater Sci

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Corrosion behavior of carbon steel in chloride and bicarbonate ion‐enriched and CO₂‐saturated solutions

Cited by 15 publications

References 47 publications

Study on the failure analysis of four metals for anaerobic fermentation reactor based on numerical simulation and electrochemical method

Study on the failure analysis of four metals for anaerobic fermentation reactor based on numerical simulation and electrochemical method

Contribution of galvanic coupling with TiN, TiAlN, and CrN to the corrosion of steel in neutral and acidic chloride solutions

Effect of SO42− in aerobic/anaerobic environment and its interaction with HCO3− on corrosion behavior of carbon steel

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Corrosion behavior of carbon steel in chloride and bicarbonate ion‐enriched and CO2‐saturated solutions

Cited by 15 publications

References 47 publications

Study on the failure analysis of four metals for anaerobic fermentation reactor based on numerical simulation and electrochemical method

Study on the failure analysis of four metals for anaerobic fermentation reactor based on numerical simulation and electrochemical method

Contribution of galvanic coupling with TiN, TiAlN, and CrN to the corrosion of steel in neutral and acidic chloride solutions

Effect of SO42− in aerobic/anaerobic environment and its interaction with HCO3− on corrosion behavior of carbon steel

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Corrosion behavior of carbon steel in chloride and bicarbonate ion‐enriched and CO₂‐saturated solutions