The influence of Ni on the microstructure and corrosion resistance of high-strength low alloy steel in the Cl-containing environment

Wang, Dan; Zhong, Qingdong; Yang, Jian; Zhang, Shujian

doi:10.1108/acmm-04-2021-2470

Cited by 7 publications

(6 citation statements)

References 29 publications

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“…During the corrosion process, the Cr in the alloy hydrolyzes to form a stable oxide passive film, which effectively inhibits the intrusion of Cl – . Cr exists mainly in the oxide state, while Ni and Co elements exist mainly in the metallic state (Wang et al , 2022). CoCrNi MEA alloy undergoes selective oxidation in the early stages of corrosion, and a continuous compact and protective Cr-rich oxide layer preferentially forms on the alloy surface.…”

Section: Resultsmentioning

confidence: 99%

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Influence of microstructure of CoCrNi medium entropy alloy on its corrosion behavior

Shi,

Ling,

Kuang

et al. 2023

ACMM

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Purpose The purpose of this paper is to reveal the effect of microstructure on the corrosion behavior of CoCrNi alloy in 3.5 Wt.% NaCl solution. Design/methodology/approach The as-cast CoCrNi alloy was prepared by arc melting, and the cold-rolled and annealed alloys were prepared by processing the as-cast alloy. Findings The experimental results showed that a protective passivation film was formed on the surfaces of these CoCrNi MEA, and the stability and compactness of alloys increased in the sequence of cold-rolled, as-cast and annealed CoCrNi alloys. The annealed CoCrNi alloys had the best pitting resistance. Originality/value This study proposes the effect of the microstructure of CoCrNi alloy on corrosion resistance.

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Section: Resultsmentioning

confidence: 99%

“…During the corrosion process, the Cr in the alloy hydrolyzes to form a stable oxide passive film, which effectively inhibits the intrusion of Cl -. Cr exists mainly in the oxide state, while Ni and Co elements exist mainly in the metallic state (Wang et al, 2022).…”

Section: Analysis Of Corrosion Mechanismmentioning

confidence: 99%

Influence of microstructure of CoCrNi medium entropy alloy on its corrosion behavior

Shi,

Ling,

Kuang

et al. 2023

ACMM

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“…In Figures 1(a), (b) and (c), OM images indicate that all steels consist of ferrite phases (white areas) and pearlite colonies (dark areas). However, the volume fraction of pearlite increased from 0.8% to 6.8% because of the increasing content of Cr that could form Cr x C y phases (Riebisch et al , 2018; Zhou et al , 2018; Wang et al , 2022a, 2022b). Moreover, the grain size measured by an intercept method was about 23.0, 22.5 and 22.9 μm for Cr 0 , Cr 0.5 and Cr 1.0 steels, respectively, suggesting that alloyed Cr had a limited effect on refining grains.…”

Section: Resultsmentioning

confidence: 99%

“…High-strength low-alloy steels that are widely used in marine engineering mainly exhibit a ferrite-pearlite microstructure (Lgwemezie and Mehmanparast, 2020;Wu et al, 2020;Lgwemezie et al, 2021;Wang et al, 2022aWang et al, , 2022bGong et al, 2016;Li et al, 2022). Because of the adverse effects of the multiphase structure, they are susceptible to corrosion during service.…”

Section: Introductionmentioning

confidence: 99%

The microstructure and corrosion behavior of Cr-containing ferrite-pearlite steels in an acidic environment

Hao

Wang

Guo

et al. 2023

ACMM

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Purpose The poor corrosion resistance of the ferrite-pearlite steel limits its application in marine engineering because of the enhanced galvanic effect caused by continuously accumulated cementite. Cr as one principal alloying element is commonly used to improve the corrosion resistance of steels. This paper aims to study the effect of Cr on corrosion behaviors of ferrite-pearlite steels in an acidic environment. Design/methodology/approach The tested steels were immersed in a simulated solution of 10 Wt.% NaCl with pH 0.85 for 72 h to evaluate the corrosion rate. After the immersion test, the corrosion morphologies and products were tested by scanning electron microscopy, energy dispersive X-ray analysis and X-ray diffraction. Meanwhile, an electrochemical workstation was used to study the electrochemical behaviors of samples. Findings At the initial corrosion stage, the corrosion rate increased in the sequence of Cr0, Cr0.5 and Cr1 steels, which was because of the competitive effect between the area ratio and the driving force caused by alloyed Cr. However, Cr1 steel exhibited the best corrosion resistance after a 72-h immersion test. This was because the alloyed Cr promoted the formation of protective Fe2O3 and FeCr2O4, which suppressed the preferential dissolution of ferrite and, thus, reduced the accumulation rate of carbides, resulting in the weakened galvanic corrosion. Originality/value This paper reports the role that Cr plays in the galvanic corrosion of ferrite-pearlite steels, which is important for the engineering application of ferrite-pearlite steels in marine environment.

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“…Compared with commercial anchor, the addition of corrosionresistant elements significantly improves the SCC resistance of Wei Wu et al, 2020;Wu et al, 2017) enhances the stability of the rust layer on the material's surface, accelerates the crystallization of the corrosion products and improves rust layer stability. Additionally, Ni increases the resistance of the AD reaction (Wang et al, 2022) while also providing higher stacking fault energy and decreasing the propagation rate of SCC. Cr can promote the transformation of the loose incomplete oxidation phase into denser and more stable phase in the rust layer, reduce the occurrence of pores and cracks in the rust layer and improve the corrosion resistance of steel (T. Kamimura et al, 2003;Sun et al, 2020;Gao, 2022).…”

Section: Stress Corrosion Cracking Mechanismmentioning

confidence: 99%

Development of a Cr-Ni-Mo alloyed stress corrosion-resistant anchor bolt steel

Du,

Chen,

Wang

et al. 2023

ACMM

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Purpose The purpose of this paper is to develop new types of anchor bolt materials by adding corrosion-resistant elements for alloying and microstructure regulation. Design/methodology/approach Three new anchor bolt materials were designed around the 1Ni system. The stress corrosion cracking resistance of the new materials was characterized by microstructure observation, electrochemical testing and slow strain rate tensile testing. Findings The strength of the new anchor bolt materials has been improved, and the stress corrosion sensitivity has been reduced. The addition of Nb makes the material exhibit excellent stress corrosion resistance under –1,200 mV conditions, but the expected results were not achieved when Nb and Sb were coupled. Originality/value The new anchor bolt materials designed around 1Ni have excellent stress corrosion resistance, which is the development direction of future materials. Nb allows the material to retain its ability to extend in hydrogen-evolution environments.

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The influence of Ni on the microstructure and corrosion resistance of high-strength low alloy steel in the Cl-containing environment

Cited by 7 publications

References 29 publications

Influence of microstructure of CoCrNi medium entropy alloy on its corrosion behavior

Influence of microstructure of CoCrNi medium entropy alloy on its corrosion behavior

The microstructure and corrosion behavior of Cr-containing ferrite-pearlite steels in an acidic environment

Development of a Cr-Ni-Mo alloyed stress corrosion-resistant anchor bolt steel

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