Mechanisms of Corrosion and Electrochemical Significance of Metallurgy and Environment with Corrosion of Iron and Steel in Bicarbonate and Carbonate Solutions—A Review

Eliyan, Faysal Fayez; Alfantazi, Akram

doi:10.5006/1213

Cited by 55 publications

(33 citation statements)

References 85 publications

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“…As reported by previous researchers, certain concentrations of inhibitors were affected by the concentration of oxygen and carbon dioxide contained in the inhibitor solution [28,29]. In this current finding, the optimal concentration of the GTS was 2000 ppm for the 7 days of immersion testing.…”

Section: Concentration Of Gts (Ppm)supporting

confidence: 76%

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Dimethyl Sulfoxide-Treated Starch of Dioescorea hispida as a Green Corrosion Inhibitor for Low Carbon Steel in Sodium Chloride Medium

Othman¹,

Salleh²,

Dasuki³

et al. 2018

Corrosion Inhibitors, Principles and Recent Applications

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This research was focused on discovering the utilization of Dioscorea hispida (gadong tuber) starch as a potential green corrosion inhibitor for SAE 1045 carbon steel in 0.6 M NaCl media. Raw starch from gadong tubers was obtained through the extraction and precipitation process prior to drying in producing fresh starch powder. The insoluble starch powder was then dissolved in 90% dimethyl sulfoxide (DMSO) solvent and was ready for corrosion inhibitor testing. The extraction of starch powder was analyzed using Fourier Transform Infrared Spectroscopy (FTIR) to identify the presence of functional groups that may contribute to the inhibition of the carbon steel sample. The inhibitive performance of gadong tuber starch (GTS) as a green corrosion inhibitor was studied by weight loss measurement and potentiodynamic polarization in a corrosive medium using 0.6 M sodium chloride (NaCl) solution. Effect of GTS concentration on corrosion behavior was investigated. Based on the findings, 1500 ppm of GTS demonstrated the highest corrosion inhibition performance as the corrosion rate of carbon steel immersed in plain 0.6 M NaCl was reduced from 0.131 to 0.018 mm/year, which is up to 86.3 IE% of inhibition efficiency in the presence of the green corrosion inhibitor. According to potentiodynamic polarization analysis, corrosion current density (I corr ) was also decreased from 1.13 × 10 −5 to 1.55 × 10 −6 mA/cm −2 .

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Section: Concentration Of Gts (Ppm)supporting

confidence: 76%

“…The polarization curves of the carbon steel in 0.6 M NaCl corrosive medium with various concentrations of GTS are shown in Figure 6. According to the Tafel plot, corrosion potential (E corr ) of all concentrations of GTS added were mostly shifted towards [23,28].…”

Section: Potentiodynamic Polarization Analysismentioning

confidence: 99%

Dimethyl Sulfoxide-Treated Starch of Dioescorea hispida as a Green Corrosion Inhibitor for Low Carbon Steel in Sodium Chloride Medium

Othman¹,

Salleh²,

Dasuki³

et al. 2018

Corrosion Inhibitors, Principles and Recent Applications

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“…Depending on the soil, different cathodic reactions may occur. For instance, the electrochemical reactions that govern the anodic and cathodic reactions are influenced by the presence of bicarbonate [38]. In particular, the mechanism of corrosion reactions on the exterior surface of buried structures when exposed to hydrated conditions containing carbon transporting agents are as follows [39] …”

Section: Corrosion In Buried Metal Structuresmentioning

confidence: 99%

Methods to Evaluate Corrosion in Buried Steel Structures: A Review

Arriba-Rodriguez

Balsera

Fernández

et al. 2018

Metals

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Around the world, there are thousands of metal structures completely or partially buried in the soil. The main concern in their design is corrosion. Corrosion is a mechanism that degrades materials and causes structural failures in infrastructures, which can lead to severe effects on the environment and have direct impact on the population health. In addition, corrosion is extremely complex in the underground environment due to the variability of the local conditions. The problem is that there are many methods to its evaluation but none have been clearly established. In order to ensure the useful life of such structures, engineers usually consider an excess thickness that increases the economic cost of manufacturing and does not satisfy the principles of efficiency in the use of resources. In this paper, an extended revision of the existing methods to evaluate corrosion is carried out to optimize the design of buried steel structures according to their service life. Thus, they are classified into two categories depending on the information they provide: qualitative and quantitative methods. As a result, it is concluded that the most exhaustive methodologies for estimating soil corrosion are quantitative methods fed by non-electrochemical data based on experimental studies that measure the mass loss of structures.

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“…However, M(4-VP) appears to have a higher affinity for Fe(II) than O(4-VP). Then, Fe(II)-4VP monomer complex is formed preferentially to FeCO 3 or Fe 2 (OH) 2 CO 3 corrosion layer [36][37][38]. The high mobility of the complex due to its small size associated to a strong agitation remove from the surface Fe(II) and subsequent corrosion product that could delete the corrosion kinetic and then let the surface totally active.…”

Section: Linear Polarization Resultsmentioning

confidence: 99%

Synthesis and Characterization of Oligomer 4-Vinylpyridine as A Corrosion Inhibitor for Mild Steel in CO<sub>2</sub> Saturated Brine Solution

Ilim

Jefferson²,

Simanjuntak

et al. 2018

Indones. J. Chem.

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In this work, the oligomer of 4-vinylpyridine designated as O(4-VP) was synthesized by hydrogen peroxide initiated chain growth polymerization and characterized in terms of molecular weight and structure by matrix assisted laser desorption ionization time of flight mass spectroscopy (MALDI-TOF MS). The oligomer was tested as corrosion inhibitor of mild steel in brine solution saturated with carbon dioxide, with the main purpose to investigate the effect of inhibitor concentrations and temperatures on the inhibition activity defined in terms of corrosion rate and percent of protection. The inhibition tests were carried out using the methods of weight loss (WL) and linear polarization (LP). Characterization using MALDI-TOF MS revealed that the oligomer has the mass (m/z) in the range 200-2400, which corresponds to chain length of 2-22 repeating units. The results of corrosion rate measurements show that the corrosion rate with the use of oligomer is significantly lower than that without inhibitor, demonstrating that the oligomer functioned as effective corrosion inhibitor, while the 4-vinyl pyridine monomer was found to promote the corrosion. It was also found that the protection by the oligomer increased with increasing temperature and it was predicted the oligomer was chemically adsorbed by the surface of the metal. Keywords: oligomer 4-vinylpyridine; corrosion inhibitor; CO 2 corrosion; MALDI-TOF MS ABSTRAK Dalam penelitian ini, oligomer 4-vinilpiridin, O(4-VP), disintesis menggunakan inisiator hidrogen peroksida untuk pertumbuhan rantai polimer dan dikarakterisasi berat molekul dan struktur molekulnya menggunakan matrix assisted laser desorpsion ionization time of flight mass spectroscopy (MALDI-TOF MS). Oligomer kemudian diuji sebagai inhibitor korosi baja ringan dalam larutan air garam yang jenuh dengan gas karbon dioksida, dengan tujuan utama untuk menyelidiki efek dari konsentrasi inhibitor dan suhu pada aktivitas inhibisi yang dinyatakan dalam bentuk laju korosi dan persen proteksi. Tes inhibisi dilakukan dengan menggunakan metode kehilangan berat (WL), dan polarisasi linier (LP). Karakterisasi menggunakan MALDI-TOF MS

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Mechanisms of Corrosion and Electrochemical Significance of Metallurgy and Environment with Corrosion of Iron and Steel in Bicarbonate and Carbonate Solutions—A Review

Cited by 55 publications

References 85 publications

Dimethyl Sulfoxide-Treated Starch of Dioescorea hispida as a Green Corrosion Inhibitor for Low Carbon Steel in Sodium Chloride Medium

Dimethyl Sulfoxide-Treated Starch of Dioescorea hispida as a Green Corrosion Inhibitor for Low Carbon Steel in Sodium Chloride Medium

Methods to Evaluate Corrosion in Buried Steel Structures: A Review

Synthesis and Characterization of Oligomer 4-Vinylpyridine as A Corrosion Inhibitor for Mild Steel in CO<sub>2</sub> Saturated Brine Solution

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