Effect of hydrogen embrittlement on the microstructures of electroplated steel alloy 4130

Reda, Y.; El-Shamy, A. M.; Eessaa, Ashraf K.

doi:10.1016/j.asej.2018.08.004

Cited by 48 publications

(15 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The prime films seem to be collected of mackinawite (FeS) and siderite (FeCO3), the final being protective. In the case where soluble iron has been added to the culture, forming bulk iron and avoiding film creation, the corrosion rates are very high [101][102][103]. In this study, FeS was the chief corrosive agent in the semi-continuous culture scheme and the logarithm of the rate of corrosion was unswervingly correlated to the logarithm of the solvable iron cations in the media.…”

Section: Other Mic Mechanisms Due To Srbmentioning

confidence: 67%

A Review on: Biocidal Activity of Some Chemical Structures and Their Role in Mitigation of Microbial Corrosion

El-Shamy¹

2020

Egypt. J. Chem.

View full text Add to dashboard Cite

Microbial corrosion has developed a foremost problematic in the oil and gas industrial field. This problem is by reason of the continual usage of water swamping in promoting oil recovery. This water moistens the walls of oil pipelines. Microbial corrosion is also present in other industries such as nuclear power reactors and in most hydropower applications. Increased corporate infrastructure also leads to increased microbial corrosion. Sulfate Reducing Bacteria (SRB) is considered as the main kind of bacterial which cause of pipeline corrosion. Because of microbial deterioration is not understood, until recently, there is no clear mechanism to explain why and how microbial corrosion occurs because of the complexity of this area. The new theory of biocatalytic cathodic sulfate reduction is bio-electrochemistry based. In this theory, the bioenergetics can explain why microbial corrosion occurs, while the extracellular electron transference theory is capable of explain how microbial corrosion happens. The microbial corrosion can be caused by nitrate reducing bacteria, which led to an analogous biocatalytic cathodic nitrate reduction theory. The electron mediator assessment intended to validate the extracellular electron transference progression which anticipated in biocatalytic cathodic sulphate reduction. The electron mediators like riboflavin and flavin adenine dinucleotide were accomplished of hastening the microbial corrosion by indorsing electron transport flanked by an iron surface and a biofilm. In case of deficient in organic carbon, the elemental iron substituted the organic carbons as an energy source/electron donor for SRB to get their conservation energy. Under unembellished undernourishment of organic carbon, the largest pit depth was accomplished, which was consistent with the estimate of biocatalytic cathodic sulphate reduction. The developing request and crucial necessity in oil and gas industry is to find an effectual method to avoid and/or mitigate microbial corrosion at a rational cost.

show abstract

Section: Other Mic Mechanisms Due To Srbmentioning

confidence: 67%

A Review on: Biocidal Activity of Some Chemical Structures and Their Role in Mitigation of Microbial Corrosion

El-Shamy¹

2020

Egypt. J. Chem.

View full text Add to dashboard Cite

show abstract

“…The energies of high occupied molecular orbital (E HOMO ) and low unoccupied molecular orbital (E LUMO ) were estimated. Furthermore, the energy gap between LUMO and HOMO (ΔE) was determined 16 .…”

Section: Methodsmentioning

confidence: 99%

Adsorption, thermodynamic, and quantum chemical investigations of an ionic liquid that inhibits corrosion of carbon steel in chloride solutions

Abbas

Ismail

Zakaria

et al. 2022

Sci Rep

View full text Add to dashboard Cite

The purpose of this work lies in the use of ionic liquids as corrosion inhibitors due to the difficulty in some oil fields with the solubility of corrosion inhibitors and these materials can be miscible with water and thus provide a solution to such problems in the industry. The second purpose is concerned with the lower toxicity of these compounds compared with the most common corrosion inhibitors. The study covered the corrosion inhibition performance of the ionic liquid 1-butyl-3-methylimidazolium trifluoromethyl sulfonate ([BMIm]TfO) for carbon steel in 3.5% NaCl solutions. The study comprised electrochemical, adsorption, and quantum chemical investigations. The results manifested that [BMIm]TfO can be considered a promising corrosion inhibitor and the inhibition efficacy intensifies as the concentration rises. The observed inhibitive effect can be correlated to the adsorption of the ionic liquid species and the creation of protecting films on the surface. The mode of adsorption follows the Langmuir adsorption isotherm. The polarization results showed that the ionic liquid [BMIm]TfO functions as a mixed inhibitor. Reliance of the corrosion influence on the temperature in the existence and absence of [BMIm]TfO was demonstrated in the temperature range of 303–333 K using polarization data. Activation parameters were determined and discussed. The observed inhibition performance of [BMIm]TfO was correlated with the electronic properties of the ionic liquid using a quantum chemical study.

show abstract

“…Corrosion can also refer to the mechanical fracture of metal [20]. Interactions with elements in the environment, regardless of how old the leaded bronze object is, maybe exceedingly detrimental to all leaded bronze things.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of potassium iodide and sodium (Z)-4-oxo-4-p-tolyl-2-butenoate on the Characterization, Treatment, and Protection of Two Bronze Objects from Thamar Museum, Yemen

Megahed

El-Shamy

2022

Preprint

View full text Add to dashboard Cite

Objects from the Thamar regional museum in Yemen were used in the investigation. In addition to a thick layer of light-green/brown corrosion result, they also had a rust-colored black and brown layer with tiny pieces and a scattering of pale green. Corrosion and its products will be examined in-depth in this study, which will assist us in better understanding the corrosive causes and degradation processes, as well as to identify the metals that comprise the chosen objects produced during long-term entombment. Both items' samples were investigated using Metallographic Microscope (ME) and Scanning Electron Microscope (SEM) for this purpose, while corrosion products were evaluated by using x-ray diffraction (XRD), while the bulk elements of the objects were determined using x-ray fluorescence (XRF). Copper, atacamite, and paratacamite have been identified by XRD analysis as the corrosion products of the leaded bronze alloy. Microscopy shows that the two items have been damaged in certain areas. Chemical cleaning was selected for the treatment of the artifacts based on the information gathered. To investigate the synergistic impact of adding 25 ppm of potassium iodide (KI) to the stock solution of the corrosion inhibitor sodium (Z)-4-oxo-4-p-tolyl-2-butenoate, in this work, the effect of potassium iodide as an improvement chemical was examined (SOTB). For the preservation of old leaded bronze items, this combination has been tested. Synergistic effects between KI and the chosen inhibitor were shown to be beneficial.

show abstract

Effect of hydrogen embrittlement on the microstructures of electroplated steel alloy 4130

Cited by 48 publications

References 29 publications

A Review on: Biocidal Activity of Some Chemical Structures and Their Role in Mitigation of Microbial Corrosion

A Review on: Biocidal Activity of Some Chemical Structures and Their Role in Mitigation of Microbial Corrosion

Adsorption, thermodynamic, and quantum chemical investigations of an ionic liquid that inhibits corrosion of carbon steel in chloride solutions

Synergistic Effect of potassium iodide and sodium (Z)-4-oxo-4-p-tolyl-2-butenoate on the Characterization, Treatment, and Protection of Two Bronze Objects from Thamar Museum, Yemen

Contact Info

Product

Resources

About