Clarifying the effect of a small amount of Cr content on the corrosion of Ni-Mo steel in tropical marine atmospheric environment

Dong, Bo‐Qing; Liu, Wei; Zhang, Tianyi; Chen, Longjun; Fan, Yongquan; Zhao, Yonggang; Li, Hai; Yang, Wenke; Sun, Yipu

doi:10.1016/j.corsci.2022.110813

Cited by 33 publications

(10 citation statements)

References 62 publications

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“…Previous studies have shown that the highfrequency capacitance loop is related to the corrosion products, the induction loop is related to the formation and adsorption of intermediate products, and the second capacitance loop is related to the electrochemical corrosion process. [42,43] With the increase of polymer concentration, the low-frequency induction circuit gradually disappears, indicating that the polymer and the generated corrosion products completely cover the substrate, resulting in the reduction of the active area of the surface. The appearance of low-frequency Warburg impedance indicates that the mixing effect of the protective film formed by polymer adsorption and the corrosion product film prevents the diffusion of ions in the solution to the matrix, thus protecting the substrate.…”

Section: Electrochemical Measurement Resultsmentioning

confidence: 99%

Insight into polymer concentration, temperature, CO₂ content, and Cl⁻ content on corrosion of N80 steel tubing in polymer flooding

Dong

Zeng

Favero³

et al. 2023

Materials & Corrosion

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The corrosion of N80 steel in polymer flooding is studied, and the safe service life of N80 steel tubing is calculated. The results show that the temperature is the main factor affecting the corrosion of tubing during the process of polymer flooding, and the safe service life of N80 carbon steel tubing at 75°C is only 11.1 years. The polymer is connected by molecular chains to form a network structure and then adsorbed on the surface of the steel. As the polymer concentration increases, the space between polymer molecules becomes smaller; the exposed surface area decreases; and the corrosion rate of N80 steel decreases. Both temperature and Cl− ions destroy the adsorption capacity of the polymer on the carbon steel substrate. The negatively charged chloride ion repels the negatively charged polymer, leading to the resolution of the polymer and reduction of the corrosion inhibition of the polymer. High temperature destroys the polymer's intramolecular and intermolecular aggregation, and also wrecks the long molecular chain polymer structure, significantly inhibiting the corrosion inhibition effect of the polymer.

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Section: Electrochemical Measurement Resultsmentioning

confidence: 99%

Insight into polymer concentration, temperature, CO₂ content, and Cl⁻ content on corrosion of N80 steel tubing in polymer flooding

Dong

Zeng

Favero³

et al. 2023

Materials & Corrosion

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“…Also, it is highly possible that the electrolyte will leak into the coating film and the corrosion will increase. The other factor of corrosion resistance was thought to be the electronegativity of the element atoms forming the ceramic structure on the surface [52][53][54]. It was known that as electronegativity between atoms increases, the ionic bonding increases.…”

Section: Microstructural and Morphological Examinationsmentioning

confidence: 99%

Electrochemical Behavior of CoO/Ag2O/TiO2 Ceramic and Composite Coated Selective Laser Manufactured 316L Stainless Steel

Yetim

2023

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Seçici lazer ergitme eklemeli üretim yöntemi ile üretilmiş 316L paslanmaz çeliğinin korozyon direncini artırmak için ayrı ayrı Ag2O, CoO, ve TiO2 ve Ag2O/CoO/TiO2 kompozit seramik film 316L yüzeyine sol-jel dip kaplama metodu ile kaplandı. Kaplanmış ve kaplanmamış numunelerin yapısal özellikleri XRD ve SEM ile karakterize edildi. Numunelerin tamamının korozyon direnci simüle edilmiş yapay tükürük sıvısı içerisinde potansiyodinamik polarizasyon ve elektrokimyasal empedans spektroskopi (EIS) testleri değerlendirildi. Test sonuçlarına göre, oldukça yoğun, kolonsal ve porlu olmayan, kompakt ve 30-40 μm kalınlığında seramik oksit filmler 316L yüzeyinde oluşturuldu. Ayrıca bütün seramik filmler 316L yüzeyinin korozyon direncini artırdı. En yüksek korozyon dirençli yüzey Ag2O/CoO/TiO2 kompozit seramik film kaplı 316L yüzeyinde elde edildi.

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“…High-strength low-alloy steels that are widely used in marine engineering mainly exhibit a ferrite-pearlite microstructure (Lgwemezie and Mehmanparast, 2020;Wu et al, 2020;Lgwemezie et al, 2021;Wang et al, 2022aWang et al, , 2022bGong et al, 2016;Li et al, 2022). Because of the adverse effects of the multiphase structure, they are susceptible to corrosion during service.…”

Section: Introductionmentioning

confidence: 99%

“…Sun et al (2021) have studied the role of Cr on corrosion resistance of weathering steel in simulated tropical marine atmosphere, finding that Cr not only stimulates the transformation of α-FeOOH but also forms Cr-containing products that improve the compactness of the corrosion product. Dong et al (2023) have reported that adding Cr in steel also promotes the formation of an inner electronegative film to repel Cl − ions. Li et al (2021) have found that Cr is more likely to repair defects in the rust layer via a degree of elemental bias.…”

Section: Introductionmentioning

confidence: 99%

The microstructure and corrosion behavior of Cr-containing ferrite-pearlite steels in an acidic environment

Hao

Wang

Guo

et al. 2023

ACMM

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Purpose The poor corrosion resistance of the ferrite-pearlite steel limits its application in marine engineering because of the enhanced galvanic effect caused by continuously accumulated cementite. Cr as one principal alloying element is commonly used to improve the corrosion resistance of steels. This paper aims to study the effect of Cr on corrosion behaviors of ferrite-pearlite steels in an acidic environment. Design/methodology/approach The tested steels were immersed in a simulated solution of 10 Wt.% NaCl with pH 0.85 for 72 h to evaluate the corrosion rate. After the immersion test, the corrosion morphologies and products were tested by scanning electron microscopy, energy dispersive X-ray analysis and X-ray diffraction. Meanwhile, an electrochemical workstation was used to study the electrochemical behaviors of samples. Findings At the initial corrosion stage, the corrosion rate increased in the sequence of Cr0, Cr0.5 and Cr1 steels, which was because of the competitive effect between the area ratio and the driving force caused by alloyed Cr. However, Cr1 steel exhibited the best corrosion resistance after a 72-h immersion test. This was because the alloyed Cr promoted the formation of protective Fe2O3 and FeCr2O4, which suppressed the preferential dissolution of ferrite and, thus, reduced the accumulation rate of carbides, resulting in the weakened galvanic corrosion. Originality/value This paper reports the role that Cr plays in the galvanic corrosion of ferrite-pearlite steels, which is important for the engineering application of ferrite-pearlite steels in marine environment.

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Clarifying the effect of a small amount of Cr content on the corrosion of Ni-Mo steel in tropical marine atmospheric environment

Cited by 33 publications

References 62 publications

Insight into polymer concentration, temperature, CO₂ content, and Cl⁻ content on corrosion of N80 steel tubing in polymer flooding

Insight into polymer concentration, temperature, CO₂ content, and Cl⁻ content on corrosion of N80 steel tubing in polymer flooding

Electrochemical Behavior of CoO/Ag2O/TiO2 Ceramic and Composite Coated Selective Laser Manufactured 316L Stainless Steel

The microstructure and corrosion behavior of Cr-containing ferrite-pearlite steels in an acidic environment

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Clarifying the effect of a small amount of Cr content on the corrosion of Ni-Mo steel in tropical marine atmospheric environment

Cited by 33 publications

References 62 publications

Insight into polymer concentration, temperature, CO2 content, and Cl− content on corrosion of N80 steel tubing in polymer flooding

Insight into polymer concentration, temperature, CO2 content, and Cl− content on corrosion of N80 steel tubing in polymer flooding

Electrochemical Behavior of CoO/Ag2O/TiO2 Ceramic and Composite Coated Selective Laser Manufactured 316L Stainless Steel

The microstructure and corrosion behavior of Cr-containing ferrite-pearlite steels in an acidic environment

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Insight into polymer concentration, temperature, CO₂ content, and Cl⁻ content on corrosion of N80 steel tubing in polymer flooding

Insight into polymer concentration, temperature, CO₂ content, and Cl⁻ content on corrosion of N80 steel tubing in polymer flooding