Pitting and etching behaviors occurring in duplex stainless steel 2205 in the presence of alternating voltage interference

Dai, Nianwei; Jun, Wu; Zhang, Lai-Chang; Yin, Limeng; Yang, Yi; Jiang, Yiming; Li, Jin

doi:10.1016/j.conbuildmat.2019.01.084

Cited by 16 publications

(5 citation statements)

References 40 publications

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“…However, these three waveform AV interferences all induce pitting corrosion on DSS 2205 samples when the solution temperature is 50°C. According to our previous studies, [34][35] the DSS samples are isolated from the pitting corrosion below the CPT whatever how high is the applied potential. Therefore, it suggests that the DSS 2205 suffers from the pitting attack below the CPT due to the interference of different waveform AV signals.…”

Section: Etching On Dssmentioning

confidence: 99%

Distinction in Corrosion Behaviors of Duplex Stainless Steel 2205 Induced by Different Waveform Alternating Voltages Interference

Dai

Jun

Sun

et al. 2019

J. Electrochem. Soc.

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Anisotropic corrosion behaviors of duplex stainless steel induced by different waveform alternating voltage (AV) interferences have never been elucidated. The results of FeCl 3 pitting immersion tests reveal that the critical pitting temperature (CPT) of 2205 samples is decreased with the interferences of three waveform AV signals. For the AV with equal root mean square (RMS) value on electrode samples, the triangular wave induces much stronger etching on DSS 2205 than the sinusoidal and square ones. However, the sinusoidal and triangular AV interferences trigger the most severe pitting corrosion in high-temperature solution (>50°C). The weight loss induced by pitting corrosion is greater than that by strong etching on samples. Regarding the etching behavior, the austenite in the duplex phase exhibits an inferior corrosion resistance and is preferentially dissolved.

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Section: Etching On Dssmentioning

confidence: 99%

Distinction in Corrosion Behaviors of Duplex Stainless Steel 2205 Induced by Different Waveform Alternating Voltages Interference

Dai

Jun

Sun

et al. 2019

J. Electrochem. Soc.

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“…Chemical etching is the process by which a material's surface is oxidized by chemical or electrochemical, for example, hot nitric acid, in order to enrich and enhance the surface functionality and surface area, respectively. Dai et al [29] subjected 2205 DSS to chemical etching and improved the corrosion resistance at a low temperature of 30 °C. Different types of heat treatments are available and have been applied to different materials, ranging from plastics, fibres, thermosets, glass, and metals, among others.…”

Section: Introductionmentioning

confidence: 99%

Determination of the impact of strain rate on dynamic recrystallization of hot-deformed 2205 duplex stainless steel

Baruwa

Gonya²,

Makhatha³

2023

MATEC Web Conf.

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2205 duplex stainless steel suffers poor hot workability, especially whe1981hot-deformed. This investigation aims to determine the strain rate’s effect on the material’s dynamic recrystallization after heat treatment. Secondly, to ascertain the critical strain at which the recrystallization occurs. The as-rolled material was subjected to heat treatment at 1340 °C for some time. After heat treatment, the yielded equiaxed austenite morphology was used for this investigation. Gleeble 1500™ thermo-mechanical was used as a simulant in uniaxial compression mode. The deformation temperature was set at 850 °C, with maximum strain at 0.8 and carried out at 0.001 s-1, 0.01 s-1, 0.1 s-1, 1 s-1, 5 s-1 strain rates. The microstructure of before and after heat-treatment was evaluated using a light microscope, while the critical factors (stress and strain) were determined through the stress-strain curve. It was observed that the lowest strain rate generated the maximum critical stress and critical strain at 191.99 MPa and 0.08283, respectively. However, at the highest strain rate, the maximum critical stress and critical strain experienced by the material were at 336.32 MPa and 0.17577. Overall, it was established that the applied stain rate influenced the critical strain and stress of the material. It can be concluded that dynamic recrystallization can occur at any strain rate, but the applied stress determines the extent of the phenomenon.

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“…Duplex stainless steels (DSSs) containing ferrite and austenite phases offer good resistance to corrosion [1][2][3][4][5] besides their good mechanical properties. Because of their improved resistance to stress corrosion cracking and corrosion fatigue [6][7][8][9][10] especially in chloride-containing environments, and for their reasonable cost compared to austenitic stainless steels, DSSs are attractive materials for the oil and gas industry, chemical plants, marine environments, and other such applications. However, hydrogen embrittlement (HE) is known to be a crucial concern in DSSs.…”

Section: Introductionmentioning

confidence: 99%

Effect of Strain Rates on Mechanical Properties of a Duplex Stainless-Steel Sheet Charged in Hydrogen Plasma

et al. 2023

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Pitting and etching behaviors occurring in duplex stainless steel 2205 in the presence of alternating voltage interference

Cited by 16 publications

References 40 publications

Distinction in Corrosion Behaviors of Duplex Stainless Steel 2205 Induced by Different Waveform Alternating Voltages Interference

Distinction in Corrosion Behaviors of Duplex Stainless Steel 2205 Induced by Different Waveform Alternating Voltages Interference

Determination of the impact of strain rate on dynamic recrystallization of hot-deformed 2205 duplex stainless steel

Effect of Strain Rates on Mechanical Properties of a Duplex Stainless-Steel Sheet Charged in Hydrogen Plasma

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