Influence of Magnesium Ions in the Seawater Environment on the Improvement of the Corrosion Resistance of Low-Chromium-Alloy Steel

Song, Sol-Ji; Kim, Jung-Gu

doi:10.3390/ma11010162

Cited by 10 publications

(3 citation statements)

References 53 publications

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“…Therefore, the gradually generated MgFe 2 O 4 oxide and spinel-structured corrosion product adhered to the coating's surface, which could be assigned to the presence of hydrated MgO in oil/aqueous environment. The Mg 2+ eases the electron transfer and sacrifices itself for the corrosion procedure [34]. Accordingly, a rather dense protective film, containing the deposited corrosion products, was generated, hindering the inward diffusion of oxygen elements and resulting in a drop in the corrosion rate after 120 h. Based on this, Figure 4b could be divided into three regions with different behaviors.…”

Section: Discussionmentioning

confidence: 99%

A Study on the Corrosion Resistance of a Coating Prepared by Electrical Explosion of 321 Metal Wire

et al. 2023

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Corrosion is known as a breakdown effect that causes the deterioration of substances in enriched petroleum/gas conditions. This reaction occurs in all materials, which is highlighted in alloys. In the present study, the morphological properties, as well as the corrosion resistance behavior of the AISI1045 steel substrate coated with 321 austenitic stainless steel metal particulate fillers, were investigated. The electro-explosive spraying technique was employed to achieve a homogenous coating on the substrate surface. According to the results, the grain size of the 321 austenitic stainless steel coating layer was shrunk and reduced to 1–3 μm after the coating procedure. The coated layer also showed a homogenous and uniform thickness with an average value of 137 μm. Also, the average adhesion strength of 49.21 MPa was obtained between the sprayed coating and the substrate. The analytical analysis found the presence of Fe-Cr and Fe-Ni phases in the coating layer. The hardness of the original metal wire is 186 HV, and the microhardness of the coating after spraying is 232 HV. After subjecting the specimen to the corrosion examination, a 0.1961 mm/a corrosion rate was obtained for up to 120 h. Moreover, the corrosion products of CaCO3, Fe3O4, and MgFe2O4 were determined by XRD analysis. Furthermore, the observed results were further confirmed by the data obtained from EPMA and EDS evaluations. Hence, this study implies the beneficial role of electro-explosive sprayed alloy 321 austenitic stainless steel in creating a protective layer against corrosion on 45 steel substrate in an enriched oil/water environment.

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Section: Discussionmentioning

confidence: 99%

A Study on the Corrosion Resistance of a Coating Prepared by Electrical Explosion of 321 Metal Wire

et al. 2023

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“…The maximum flow stress of steels could be increased by increasing the carbon content in high manganese steels. This effect was weaker with increased temperature [30]. The oxidation resistance and corrosion resistance of steels could be improved by a dding an appropriate amount of chromium [30].…”

Section: Introductionmentioning

confidence: 99%

“…This effect was weaker with increased temperature [30]. The oxidation resistance and corrosion resistance of steels could be improved by a dding an appropriate amount of chromium [30]. The effects of alloying elements on properties of high manganese steels has been widely studied.…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature, strain rate and chromium content on the flow behavior of high-manganese steels

Xia

Yan

Zhang

et al. 2022

Mater. Res. Express

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Compression tests and metallographic observation were conducted to investigate the effect of temperature (400-1100 ℃), strain rate (0.001-10 s-1) and chromium content (0.21-5.44 wt.%) on the flow behavior of high manganese steels for cryogenic application. The results showed that the flow stress reduced with increased temperature and decreased strain rate. The effect of chromium content on the flow stress of steels was not linear. The lowest flow stress was got when the content of chromium was 1.53 wt.%. The influence of strain rate and temperature was obvious while that of chromium content was minor. The maximum flow stress decreased 538 MPa-571 MPa when the temperature rised from 400 ℃ to 1100 ℃ at the strain rate 10 s-1. It ascended 146 MPa-149 MPa when the strain rate increased from 0.001 s-1 to 10 s-1 at 400 ℃. However, the effect of chromium content on the maximum flow stress of steels did not exceed 50 MPa at tested temperatures and strain rates. Dynamic recrystallization (DRX) was observed for all tested steels at 1100 ℃. Higher temperatures and lower strain rates seemed to promote DRX. The true strain required for DRX was the largest when the chromium content in steels was 1.53 wt.%. It delayed the occurrence of DRX.

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The empirical prediction of weight change and corrosion rate of low-carbon steel

Ali

Fulazzaky

2020

Heliyon

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Understanding the corrosion rate of metallic building materials is very important to maximize their beneficial use of public facilities. Direct measurements of the weight change and corrosion rate would be time consuming and expensive. This study aims to develop new empirical models based on the experimental data of testing 25 specimens immersed in five different environments for predicting the weight change and corrosion rate of the low-carbon steel. Using the equation developed based on the correlation between corrosion rate and chloride ion concentration is able to predict the corrosion rate of low-carbon steel at the limited chloride ion concentration. An increase in the trend lines of plotting the modeled and measured weight change of low-carbon steel versus immersion time is very similar to each other and progressively increase with increasing of the NaCl concentration. The corrosion rate of low-carbon steel increases from 0.202 to 0.286 mm/y with increasing of the NaCl concentration from 0 to 5% (w/w) in aqueous solution. The weight change and corrosion rate of the steel material are predicted using the new empirical models to contribute to the most reliable applications of low-carbon steel building materials in the future.

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Influence of Magnesium Ions in the Seawater Environment on the Improvement of the Corrosion Resistance of Low-Chromium-Alloy Steel

Cited by 10 publications

References 53 publications

A Study on the Corrosion Resistance of a Coating Prepared by Electrical Explosion of 321 Metal Wire

A Study on the Corrosion Resistance of a Coating Prepared by Electrical Explosion of 321 Metal Wire

Effect of temperature, strain rate and chromium content on the flow behavior of high-manganese steels

The empirical prediction of weight change and corrosion rate of low-carbon steel

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