Corrosion behaviour of a quenched and partitioned medium carbon steel in 3.5 wt.% NaCl solution

Yang, Jilan; Lu, Yuquan; Guo, Zhenghong; Gu, Jianfeng; Gu, C.D.

doi:10.1016/j.corsci.2017.10.027

Cited by 123 publications

(36 citation statements)

References 41 publications

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“…It can be seen that the corrosion products of the experimental steel after 80 corrosion cycles were mainly α-FeOOH, γ-FeOOH. The cotton globules are α-FeOOH, and the flower cluster is γ-FeOOH [27,28]. The cotton globular α-FeOOH structure is relatively tight, which can serve as a physical barrier and block the penetration of corrosive media, and reduce the corrosion rate.…”

Section: Phase Composition Of the Rust Layermentioning

confidence: 99%

Experimental design of Cu content in weathering resistance steel for industrial atmosphere application

Yan

Guo

et al. 2020

Mater. Res. Express

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In this paper, the effect of sulfur dioxide (SO 2 ) on the corrosion behavior of weathering steel with different copper (Cu) contents in a simulated industrial environment was studied. The results showed that the corrosion occurred in three distinct stages with the corrosion kinetics characterized via the parameter of 'n'. For the first and second stage with n>1 and n<1, the corrosion of weathering steel was accelerated and reduced, respectively. The third stage witnessed the minimum value of n, indicating a lowest corrosion rate. As the Cu content increased from 0.15% to 0.50%, the corrosion weight gained and corrosion rate remarkably decreased. In contrast, when the Cu contents increased from 0.50% to 0.70%, the corrosion rate began to slightly decrease. With the Cu addition, the stable α-FeOOH phase in the rust layer was refined, which increased the electrochemical impedance accordingly lowered the electrochemical reaction rate and ultimately enhanced the corrosion resistance. In this work, we have studied the corrosion mechanism of Cu element on the weathering steel in the industrial atmosphere, and studied the effect of Cu content on the corrosion resistance of weathering steel. The research shows that the content of the effect is not great, so the recommended amount of Cu in weathering steel is not more than 0.50%.

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Section: Phase Composition Of the Rust Layermentioning

confidence: 99%

Experimental design of Cu content in weathering resistance steel for industrial atmosphere application

Yan

Guo

et al. 2020

Mater. Res. Express

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“…The corrosion resistance of weathering steel is mainly in connection with the nature of the rust layer. Therefore, the evolution of the rust layer generated on weathering steel can be studied according to the change in the crystal morphology of the rust layer [6,25,26]. Figure 4 shows the corrosion microstructure of the corrosion products of three groups of steel at the 6th, 30th, and 120th cycles, respectively.…”

Section: Microscopic Morphology Of the Rust Layermentioning

confidence: 99%

“…Figure 4 shows the corrosion microstructure of the corrosion products of three groups of steel at the 6th, 30th, and 120th cycles, respectively. The main morphological features include whisker α-FeOOH, plate-like β-FeOOH, and flower petals γ-FeOOH [6]. When corrosion proceeds, the rust layer becomes more and more dense, but the corrosion morphology of the different steel types is different.…”

Section: Microscopic Morphology Of the Rust Layermentioning

confidence: 99%

“…The crystalline corrosion products formed on the metal surface in a long-term exposure environment mainly include α-FeOOH, β-FeOOH, γ-FeOOH, and Fe 3 O 4 . They play an important role in protecting long-term exposure weathering steel from corrosion [6]. The protective layer formed on the surface of weathering steel is more compact in structure and weathering steel has a higher corrosion resistance than carbon steel so that it can be used in a variety of atmospheric environments for a long time [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Si Content on the Corrosion Behavior of 420 MPa Weathering Steel

Sun

Zhang

et al. 2019

Metals

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: The effect of Si content (0.12%, 0.34%, and 0.48%) on the corrosion behavior of weathering steel in a simulated marine environment was investigated in a dry/wet alternating cycle corrosion experiment. Corrosion weight gain, X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and electrochemical methods were used to measure the regularity and nature of the rust. The results show that the corrosion process could be divided into an initial stage where the corrosion rate increased and a later stage where the corrosion rate decreased before remaining stable. The corrosion rate was the lowest for a Si content in the weathering steel of 0.48%. The corrosion products of all three steel groups contains α-FeOOH, β-FeOOH, γ-FeOOH, Fe3O4, and large amounts of amorphous compounds. Furthermore, Si benefits the transformation of β-FeOOH and γ-FeOOH to stable phases. The addition of the Si alloying element is beneficial to the formation of dense and compact rust layers that enhance the electrochemical resistance of weathering steel and silicon oxide influences the self-corrosion potential of the corrosion products.

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“…There are much research have been distributed on the utilized of natural products as corrosion protection [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. A lot of plant extracts employed as effectively as corrosion protection for C-steel ina medium of acid [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

CalicotomeExtract as a Friendly Corrosion Inhibitor forCarbon Steel in Polluted NaClSolution: Chemical and Electrochemical Studies

et al. 2019

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T HIS study describes the ability of Calicotome extract (CE) to inhibit the corrosion of C-steel in polluted NaCl (3.5%NaCl+ 16 ppm Na 2 S) solution which carried out using chemical (weight loss, WL)and electrochemical(potentiodynamic polarization, PP, electrochemical impedance spectroscopy, EIS and electrochemical frequency modulation, EFM) techniques. Langmiur isotherm was tested to describe the adsorption behavior of C-steel surface. The PP measurements revealed that the adsorption of extract affects both anodic and cathodic reactions. The protection efficiency (% IE) increases by rising concentrations, while it lowers with raising the temperature. The C-steel surface morphology in the presence and absence of CE has been tested via Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and (FTIR) spectroscopy measurements. The obtained data from different techniques are in good agreement. Graphical AbstractBlank 50 ppm 100 ppm 150 ppm 200 ppm 250 ppm 300 ppm log i , mA cm -2 comparison of %IE of 300 ppm CE obtained by different techniques, as shown from the figure that all techniques gave almost similar results. ConclusionThe CE shows the corrosion protection for C-steel in polluted NaCl solution, where IE ratio improved by the rise of compound concentration. The IE is decreasing with the rise of temperature resulting from the destruction of the adsorbed CE molecules present on the C-steel surface. The presence of CE on the surface follows the Langmiur equation. Tafel curves showed that CE is mixed-kind inhibitor. C dl reduced while R ct rises by the increasing the CE concentration. The adsorbed film of the CE on the C-steel surface was proved by SEM, AFM and FTIR analysis.

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Corrosion behaviour of a quenched and partitioned medium carbon steel in 3.5 wt.% NaCl solution

Cited by 123 publications

References 41 publications

Experimental design of Cu content in weathering resistance steel for industrial atmosphere application

Experimental design of Cu content in weathering resistance steel for industrial atmosphere application

Effect of Si Content on the Corrosion Behavior of 420 MPa Weathering Steel

CalicotomeExtract as a Friendly Corrosion Inhibitor forCarbon Steel in Polluted NaClSolution: Chemical and Electrochemical Studies

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