Effect of pulsed current cathodic protection on pipeline steel API 5L X65 corrosion mitigation: An investigation and machine learning-assisted modeling

Eslamian, Hosein; Javidi, Mehdi; Zamani, Mohammad Reza; Dana, Mohammad Mahdi; Mansoori, Eghbal

doi:10.1016/j.corcom.2023.01.005

Cited by 4 publications

(1 citation statement)

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“…Corrosion is a serious worldwide problem that affects a wide variety of metallic structures [1][2][3]. Therefore, numerous methods and materials have been developed in order to minimize the damage caused by the corrosion process [4][5][6]. Corrosion protection and prevention are remarkably important, given that a considerable portion of the gross domestic product is consumed annually by corrosion.…”

Section: Introductionmentioning

confidence: 99%

Performance and Surface Modification of Cast Iron Corrosion Products by a Green Rust Converter (Mimosa tenuiflora Extract)

Arceo-Gómez,

Reyes-Trujeque,

Balderas-Hernández

et al. 2024

Surfaces

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One of the alternative materials used for conducting conservation treatment of iron artifacts is the rust converter, since it generates barrier properties and more stable oxides. The protective properties and surface modifications from using Mimosa tenuiflora extract as a green rust converter on a gray iron oxide layer were studied. The surface characterization was carried out using a Scanning Electron Microscope coupled to an energy-dispersive X-ray spectrometer (SEM-EDS), along with infrared spectroscopy (IR), Raman spectroscopy, X-ray Diffraction (XRD), and Water Contact Angle (WCA). Electrochemical characterization was performed with an Electrochemical Impedance Spectroscope (EIS) using 3.5 wt.% NaCl as the electrolyte. According to the results of the Raman spectroscopy and XRD, the layer of corrosion products formed after 90 days in the atmosphere was composed of goethite, lepidocrocite, maghemite, hematite, and magnetite. The surface of the corrosion products was transformed with the rust converter into an amorphous and microcracked layer. By IR, the Fe-O and C-O-Fe bonds associated with the iron chelate were found with absorption bands at 1540 and 1567 cm−1, respectively. By XRD, a modification of the magnetite crystallinity was observed. Finally, the Water Contact Angle and the protective capacity of the corrosion products were improved by the presence of the rust converter.

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