Improving the Corrosion Resistance of Carbon Steel by Ni–P Nano-Structured Coating

Jafari, Esmaeil

doi:10.1134/s1023193520120083

Cited by 7 publications

(5 citation statements)

References 39 publications

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“…The formation of (Cr,Fe) 2 N 1-x is possible due to the nitriding reaction of chromium and iron after the decomposition of NH 4 Cl, which is added to the chromising mixture as an activator. [11] The ferritematrix is not revealed in all analyses due to the reduced penetration of the X-rays, which is in agreement with the study by Arai and Moriyama.8…”

Section: Figure (1): X-ray Diffraction Pattern For Some Coated Specimenssupporting

confidence: 89%

“…to form the coating. [11] This work is aimed at protecting low carbon steel surface from corrosive ingredients present in the working environment and enhancing the corrosion resistance through the deposition of the layers of coating of Ti, Ti/Cr and Cr using the pack cementation method. The in uence of pack chromizing, titanizing and chromtitanize parameters of low-carbon steel (temperature, time) on the morphology and composition of the produced layers was studied.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of Corrosion Resistance of Low Carbon Steels by Surface Modification

Abobakr,

Bastweesy,

Hassan

2024

Preprint

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This research aims to investigate the corrosion resistance of surface layers of pack chromizing, titanizing, and chromtitanize low-carbon steel in a chloride-containing environment at room temperature. The parameters affecting the diffused coat, such as the coating time, coating temperature, and the effect of pack compositions, were also studied. Tests are performed to measure wet corrosion behavior using the Potentiodynamic polarization corrosion test. The microstructures and elemental analysis using a scanning electron microscope (SEM) attached to an EDX unit were obtained. Phase analysis is determined using EDX. X-ray diffraction examination indicated that in the chromizing, titanizing, and chromotitanizing processes at different coating times and temperatures of 900°C, 1000°C, and 1100°C. The outer layer is composed basically of Cr,Ti, Cr1.9Ti, FeTi, Al2O3, Cr2O3, TiO2, Cr1.36Fe0.52, (Ti0.86)3.58, and Ti0.86 phases in addition to the elemental iron. The thickness of the coating increases with the increase of the deposition time. The coating is composed of a thick outer layer and a thin inner layer. The formation of the coating depends on the inward diffusion of Cr and Ti atoms and the outward diffusion of Fe atoms. The linear polarization examination showed that the corrosion resistance of steel is enhanced by coating it in a 3.5% NaCl aqueous solution at room temperature. Potentiodynamic polarization examination showed a lower corrosion rate of the coated specimens than the uncoated ones, and the coated specimens exhibit nobler behavior than the uncoated ones in a 3.5% NaCl aqueous solution at room temperature. The corrosion resistance of the coating is proportional to the deposition time and temperature.

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Section: Figure (1): X-ray Diffraction Pattern For Some Coated Specimenssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Improvement of Corrosion Resistance of Low Carbon Steels by Surface Modification

Abobakr,

Bastweesy,

Hassan

2024

Preprint

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“…where CR: corrosion rate (mm/y), K1= 3.27x10 −3 mm g/μA cm y, EW: Equivalent weight (the atomic weight of the element in gram/ valence of the element), ρ: density in g/cm 3 , and to evaluate the protective effect of coatings on low carbon steel, the criterion of corrosion protection efficiency (CPE) was also used and determined using the following equation [16], [34].…”

Section: Corrosion Behaviourmentioning

confidence: 99%

“…However, carbon steel has low resistance to corrosion, which is considered a major economic problem worldwide. Because low carbon steel equipment and machine parts are highly corrosive in chloride or seawater environments, which have varying corrosive levels depending on ion concentration, evaluating corrosion problems in carbon steel is critical [3]- [5]. However, corrosion can be controlled in several ways, including the use of a protective coating, which is the recommended solution for developing materials for resistance to corrosion [6]- [7].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance Enhancement for Low Carbon Steel by Gas Phase Coating

Djanali¹

2023

JMechE

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Corrosion Resistance Enhancement for low carbon steel is very important to extend its life service, the coating process is one of the methods which can using to achieve this, and it's the most important in surface treatments to improve the properties of metals and alloys surfaces such as corrosion resistance. In this work, low carbon steel was nitrided and coated with nano zinc using gas phase coating technical, to enhance the resistance of corrosion. The process included adding two layers. The first, a nitride layer, was added by precipitating nitrogen (N) gas, and the second, a zinc (Zn) layer, was added by precipitating Zn. The process of precipitating was carried out at different periods (5, 10, and 15 minutes). Scan electron microstructure (SEM), X-ray diffraction (XRD) and corrosion tests were carried out. The SEM and XRD results showed a new microstructure with the emergence of new phases (C3N4, Zn(N3)2, and γN). Also, the results of the corrosion test showed a significant improvement in corrosion resistance through a reduction in the corrosion rate (CR) and corrosion current density (icorr) which reached (1.598x10-3 mmpy) and (1.422x10-7 Amp/cm2) respectively, for coated samples, compared with 1.803×10-1 and 1.604x10-5, respectively, for the base metal. also found an appreciable increase in corrosion protection efficiency (CPE), which reached 99.11%.

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“…However, carbon steel is easily corroded and invalidated, which greatly restricts its application in a wider range of fields and brings a lot of economic losses. Therefore, research on improving the corrosion resistance of carbon steel has become a hot topic in the iron and steel field in recent years [1][2][3]. As a non-ferrous metal element, copper has an obvious effect on improving the corrosion resistance of steel [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behaviour of Cu/Carbon Steel Gradient Material

Gao

et al. 2021

Crystals

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Research on improving the corrosion resistance of carbon steel has become a hot topic in the iron and steel field in recent years. Copper plating on the surface of carbon steel is considered an effective means to improve its corrosion resistance, but the copper-plated carbon steel material prepared by this method has the problems of poor abrasion resistance, easy delamination of copper layer and similar issues, which affect the service performance of the copper-plated carbon steel material. To solve this problem, a new type of material whose surface is copper and the copper element is gradually diffused into carbon steel was developed by a plating-diffusion method, which is defined as a copper-carbon steel gradient material. Carbon steel with a copper plated surface and the Cu-Fe/carbon steel gradient material with 80% Cu content on the surface were prepared by the same method. The cross-sectional microstructure and composition of different samples were analysed, and the corrosion behaviors of samples in 3.5% NaCl solution were studied by the linear polarization curve method and electrochemical impedance spectroscopy. The cross-sectional microstructure result shows that the diffusion of copper in carbon is mainly carried out along its grain boundary, and the diffusion of copper will inhibit the growth of grains during heat treatment. As shown in the results of corrosion behaviors, there is no pitting corrosion in the corrosion process of all samples, as well as the stable passive film. All samples showed active dissolution. Compared with carbon steel, the corrosion potential of the Cu/carbon steel gradient material becomes more positive from −600 mV to −362 mV，the corrosion current density decreases from 53.0 μA/cm2 to 30.6 μA/cm2 and the radius of electrochemical impedance spectroscopy enlarges while the corrosion resistance is improved, and the corrosion resistance is mainly obtained by its surface copper layer. The corrosion resistance of Cu-Fe/carbon steel gradient material is lower than that of Cu/carbon steel gradient material, while it is still better than carbon steel, and it shows a clear passivation trend during corrosion. Therefore, the copper/carbon steel gradient material can significantly improve the corrosion resistance of carbon steel. Even after the surface copper layer is destroyed, the gradient material can protect the matrix and improve the service life of the material.

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Improving the Corrosion Resistance of Carbon Steel by Ni–P Nano-Structured Coating

Cited by 7 publications

References 39 publications

Improvement of Corrosion Resistance of Low Carbon Steels by Surface Modification

Improvement of Corrosion Resistance of Low Carbon Steels by Surface Modification

Corrosion Resistance Enhancement for Low Carbon Steel by Gas Phase Coating

Corrosion Behaviour of Cu/Carbon Steel Gradient Material

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