Effect of Cu Addition in Pipeline Steels on Prevention of Hydrogen Permeation in Mildly Sour Environments

Baba, Kazuhiko; Mizuno, Daisuke; Yasuda, Kyono; Nakamichi, Haruo; Ishikawa, Nobuyuki

doi:10.5006/2013

Cited by 14 publications

(4 citation statements)

References 11 publications

(10 reference statements)

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“…In addition to FeS and NiS for the Cu-and Ni-added steel, Cu 2 S would also be formed. 36) Due to the smallest Ksp of Cu 2 S among the three sulfides in the present study, 40) Cu would firstly form Cu 2 S, so the Cu-Ni-rich layer tightly bonded to substrate was observed in Fig. 7(c).…”

Section: Corrosion Against Srb Of Cu/ni-added Steelmentioning

confidence: 65%

“…For the Cufree steel (Ni-added steel only), the Fe and Ni would react with sulfides produced by SRB metabolizing and form FeS and NiS. Due to the solubility product constant (Ksp) of NiS is smaller than that of FeS, 40) NiS is more likely to precipitate before FeS. So that the Ni-rich layer accumulated near the substrate (Fig.…”

Section: Corrosion Against Srb Of Cu/ni-added Steelmentioning

confidence: 99%

“…7(c). Kolthoff et al 45) and Baba et al 40) reported that Cu 2 S could promote the FeS co-precipitation, forming a denser corrosion product layer on the surface of the substrate. The denser the corrosion product layer, the stronger its ability to suppress corrosion.…”

Section: Corrosion Against Srb Of Cu/ni-added Steelmentioning

confidence: 99%

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Effect of Nano-sized Cu-Rich Phase on Microbiological Corrosion Behavior of Cu and Ni-Added Steel for Oil Country Tubular Goods

Shi,

Zeng,

Ren

et al. 2024

ISIJ Int.

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The Cu-bearing antibacterial low-alloyed steel pipe is a new strategy to mitigate microbiologically influenced corrosion (MIC) for oil and gas industry. It can effectively alleviate the occurrence of bacterial corrosion, but cannot avoid the MIC totally. To enhance the resistance to MIC of Cu-bearing low-alloyed steel, the MIC behavior of a Cu and Ni-added experimental steel with different nano-sized Cu-rich precipitates was investigated. Results showed that the synergistic effect of antibacterial ability of nano-sized Cu-rich precipitates and protective Cu-Ni enrichment layer formed on the steel surface contributed to the good MIC resistance. Although the Cu-rich precipitates possessed antibacterial actively, they also increased the surface potential difference simultaneously, resulting in promoting MIC. The extremely fine and dispersed Cu-rich precipitates with high-density was the preferred microstructure to achieve better MIC resistance for the steel.

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Section: Corrosion Against Srb Of Cu/ni-added Steelmentioning

confidence: 65%

Section: Corrosion Against Srb Of Cu/ni-added Steelmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Nano-sized Cu-Rich Phase on Microbiological Corrosion Behavior of Cu and Ni-Added Steel for Oil Country Tubular Goods

Shi,

Zeng,

Ren

et al. 2024

ISIJ Int.

View full text Add to dashboard Cite

show abstract

“…Copper also makes a protective layer on the surface of steel and decrease the hydrogen diffusion inside the steel. Baba et al [72] investigated the effect of copper addition on the prevention of hydrogen permeation in sour environment in pipeline steel. These authors concluded that copper creates an inner layer of corrosion product with 100 nm on the surface of steel preventing hydrogen entry inside the microstructure of steel.…”

Section: Effect Of Different Elements On Scc Susceptibilitymentioning

confidence: 99%

Effects of Different Parameters on Initiation and Propagation of Stress Corrosion Cracks in Pipeline Steels: A Review

Mohtadi-Bonab

2019

Metals

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The demand for pipeline steels has increased in the last several decades since they were able to provide an immune and economical way to carry oil and natural gas over long distances. There are two important damage modes in pipeline steels including stress corrosion cracking (SCC) and hydrogen induced cracking (HIC). The SCC cracks are those cracks which are induced due to the combined effects of a corrosive environment and sustained tensile stress. The present review article is an attempt to highlight important factors affecting the SCC in pipeline steels. Based on a literature survey, it is concluded that many factors, such as microstructure of steel, residual stresses, chemical composition of steel, applied load, alternating current (AC) current and texture, and grain boundary character affect the SCC crack initiation and propagation in pipeline steels. It is also found that crystallographic texture plays a key role in crack propagation. Grain boundaries associated with {111}∥rolling plane, {110}∥rolling plane, coincidence site lattice boundaries and low angle grain boundaries are recognized as crack resistant paths while grains with high angle grain boundaries provide easy path for the SCC intergranular crack propagation. Finally, the SCC resistance in pipeline steels is improved by modifying the microstructure of steel or controlling the texture and grain boundary character.

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Influence of Ni on corrosion and trench formation of low alloy steel in low H₂S content sour corrosion environments

Samusawa,

Shimamura,

Helal

et al. 2023

Materials & Corrosion

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The influence of Ni content on corrosion and trench formation of low alloy steel in a low H2S containing sour corrosion environment was investigated. The results show that Ni decreases the total amount of corrosion by forming a passive film containing Ni components, such as NiS and Ni3S2 on the steel surface as a result of long‐term corrosion and suppressing the anodic dissolution reaction, while increasing the trench depth. It was also identified that the Ni content had a more dominant effect on trench formation in steel regardless of the tested sour environments with 0.01 bar H2S gas (pH 4.0) and 0.001 M Na2S2O3 (pH 2.7) in this study. Based on the experimental findings, the mechanism of trenching propagation by Ni was discussed from the viewpoint of changes in surface film properties and associated difference of corrosion resistance between trench‐tip and bulk surface due to the variation in Ni content.

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Effect of Cu Addition in Pipeline Steels on Prevention of Hydrogen Permeation in Mildly Sour Environments

Cited by 14 publications

References 11 publications

Effect of Nano-sized Cu-Rich Phase on Microbiological Corrosion Behavior of Cu and Ni-Added Steel for Oil Country Tubular Goods

Effect of Nano-sized Cu-Rich Phase on Microbiological Corrosion Behavior of Cu and Ni-Added Steel for Oil Country Tubular Goods

Effects of Different Parameters on Initiation and Propagation of Stress Corrosion Cracks in Pipeline Steels: A Review

Influence of Ni on corrosion and trench formation of low alloy steel in low H₂S content sour corrosion environments

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Effect of Cu Addition in Pipeline Steels on Prevention of Hydrogen Permeation in Mildly Sour Environments

Cited by 14 publications

References 11 publications

Effect of Nano-sized Cu-Rich Phase on Microbiological Corrosion Behavior of Cu and Ni-Added Steel for Oil Country Tubular Goods

Effect of Nano-sized Cu-Rich Phase on Microbiological Corrosion Behavior of Cu and Ni-Added Steel for Oil Country Tubular Goods

Effects of Different Parameters on Initiation and Propagation of Stress Corrosion Cracks in Pipeline Steels: A Review

Influence of Ni on corrosion and trench formation of low alloy steel in low H2S content sour corrosion environments

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Influence of Ni on corrosion and trench formation of low alloy steel in low H₂S content sour corrosion environments