The role of hydrogen in the corrosion and cracking of steels - a review

Wen-yao, LI; Cao, Ruohan; Xu, Lining; Li, Qiao

doi:10.1016/j.corcom.2021.10.005

Cited by 42 publications

(7 citation statements)

References 104 publications

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“…From the results, Cs-g-L-arginine has a higher value of X than that of pure chitosan; this indicates that the modified copolymer has better inhibition efficiency than that of pure chitosan. Hydrogen ions produced by the acid will turn to promote the anodic dissolution of the mild steel leading to various forms of corrosion [ 37 ]. Considering the nature of the inhibitor with respect to number of nitrogen atoms in the molecule, one may suggest that the inhibitor molecule will interact with the hydrogen ion and at the same time interact with the metal surface by donating the lone pair of electrons to the empty d –o and f- orbitals of the iron atom.…”

Section: Resultsmentioning

confidence: 99%

L-Arginine Grafted Chitosan as Corrosion Inhibitor for Mild Steel Protection

et al. 2023

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Corrosion prevention has been a global phenomenon, particularly in metallic and construction engineering. Most inhibitors are expensive and toxic. Therefore, developing nontoxic and cheap corrosion inhibitors has been a way forward. In this work, L-arginine was successfully grafted on chitosan by the thermal technique using a reflux condenser. This copolymer was characterized by Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and X-ray diffraction (XRD). The corrosion inhibition performance of the composite polymer was tested on mild steel in 0.5M HCl by electrochemical methods. The potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) results were consistent. The inhibition efficiency at optimum concentration rose to 91.4%. The quantum chemical calculation parameters show good properties of the material as a corrosion inhibitor. The molecular structure of the inhibitor was subjected to density functional theory (DFT) to understand its theoretical properties, and the results confirmed the inhibition efficiency of the grafted polymer for corrosion prevention.

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Section: Resultsmentioning

confidence: 99%

L-Arginine Grafted Chitosan as Corrosion Inhibitor for Mild Steel Protection

et al. 2023

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“…Al 3+ moved outward and anions such as Cland SO 4 2− migrated inward due to electrostatic attraction. [37,38] Eventually, a large corrosion pit is formed and the anions built up at the bottom of the corrosion pit. [34] It is well known that Al 3+ is prone to hydrolysis reaction (Reaction (2) and ( 3)) in aqueous solutions [39] and thus forming the hydrolysate Al (OH) 3 , which has been ascertained by the XRD results in Figure 9.…”

Section: Discussionmentioning

confidence: 99%

“…

{\mathrm{Al}}^{3+}

moved outward and anions such as Cl ‐ and

{\mathrm{SO}}_{4}^{2-}

migrated inward due to electrostatic attraction. [ 37,38 ] Eventually, a large corrosion pit is formed and the anions built up at the bottom of the corrosion pit. [ 34 ]…”

Section: Discussionmentioning

confidence: 99%

Pitting corrosion behavior and mechanism of 5083 aluminum alloy based on dry‐wet cycle exposure

Wan

Jin

et al. 2022

Materials & Corrosion

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Electrochemical and surface analysis methods were used to investigate the pitting susceptibility and propagation of as-received and dry-wet cycle exposed 5083 aluminum alloy (AA5083) specimens. We find that dry-wet cycle exposure can reduce the corrosion potential, while increasing the corrosion current density, pitting potential (E p ), and passivation range. The pitting corrosion behavior during the dry-wet cycle process depends on the exposure temperature and time. Increased exposure temperature and time result in reduced pitting percentage and corrosion altitude and decreased microhardness of the corrosion products, which promotes the pitting sensitivity of AA5083. The underlying pitting mechanism is proposed by employing the morphology and microstructures of the corrosion products.

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“…Metals have an important role in supporting the progress of a nation's development and in the global economy (Zakeri et al 2022). However, problems often occur especially when metallic materials come into contact with hydrogen atoms or molecules during the manufacturing, processing and service processes (Li et al 2021). Hydrogen is able to be adsorbed onto the metal surface, therefore causes damage to mechanical properties and causes premature failure of the resulting steel structure (Liu et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Hydrogen is able to be adsorbed onto the metal surface, therefore causes damage to mechanical properties and causes premature failure of the resulting steel structure (Liu et al 2016). Corrosion is a natural process in which metals and their alloys attempt to return to a more stable thermodynamic state, as a result of a series of chemical processes or reactivity with the surrounding environment (Li et al 2021;Prestat and Thierry 2021;Shang and Zhu 2021;Tanwer and Shukla 2022).…”

Section: Introductionmentioning

confidence: 99%

Propolis extract as a green bacterial corrosion inhibitor on three types of metals

et al. 2022

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Abstract. Watiniasih NL, Budiarsa IN, Antara ING, Wiradana PA. 2022. Propolis extract as a green bacterial corrosion inhibitor on three types of metals. Biodiversitas 23: 4852-4860. Corrosion causes severe damage to various types of metals, which is a serious problem in the infrastructure sector. Several studies have been conducted to find more efficient natural inhibitors. This study was aimed to determine the effectiveness of antioxidants from propolis extract in inhibiting the growth of bacteria that cause corrosion on various metals. The ethanol extract was carried out to obtain the bioactive contained in the propolis extract, then analyzed its antioxidant activity with DPPH and characterized using GC-MS. Various concentration of propolis extract were tested on NA+1% Fe medium to determine its resistance to corrosion-causing bacteria. Propolis extract was tested on several types of metals in inhibiting the corrosion rate. The results showed that the tested propolis extract had strong antioxidant activity with an IC50 value of 82.496 ppm. The characterization of the metabolite profile showed that the propolis extract was dominated by chemical components that act as antioxidants and antibacterial agents. In the future, the results of this study can be used as a practical guide for the application of bioactive compounds through a biocontrol approach to the growth of corrosion-causing bacteria.

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The role of hydrogen in the corrosion and cracking of steels - a review

Cited by 42 publications

References 104 publications

L-Arginine Grafted Chitosan as Corrosion Inhibitor for Mild Steel Protection

L-Arginine Grafted Chitosan as Corrosion Inhibitor for Mild Steel Protection

Pitting corrosion behavior and mechanism of 5083 aluminum alloy based on dry‐wet cycle exposure

Propolis extract as a green bacterial corrosion inhibitor on three types of metals

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