Determination of the hydrogen effects on the passive film and the micro-structure at the surface of 2205 duplex stainless steel

Yao, Jizheng; Li, Ni; Grothe, Hinrich; Qi, Zhenhui; Dong, Chaofang

doi:10.1016/j.apsusc.2021.149597

Cited by 20 publications

(6 citation statements)

References 59 publications

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“…34,41 From a thermodynamic point of view, the work function is closely related to the electrode potential and can be used to evaluate corrosion behavior. Materials with higher work function generally have higher corrosion potentials, 22,23 and corrosion reactions are more difficult to occur.…”

Section: Work Functionmentioning

confidence: 99%

“…20,21 The rst-principles calculation of work function reect the electrode potential on the surface of the material, which can be used to evaluate the corrosion behavior of the materials. 22,23 Li et al 24 obtained the intrinsic potential difference between each phase by calculating the work function of a-Fe (110) plane, martensite (110) and (Fe,Cr) 23 C 6 (111), and then evaluated the effect of annealing treatment on the corrosion resistance of X 2 CrNi 12 steel by comparing the potential difference of each phase. Yin et al 13 calculated the surface energy and work function of the Fe(110), Cr(110) and Fe(110) surface doped with Cr to study the surface properties of the alloy, and found that the surface energy increases while the work function does not change much aer doping with one or two Cr.…”

Section: Introductionmentioning

confidence: 99%

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Towards quantum corrosion chemistry: screening perfect Cr, Ni sites and stoichiometry on top of an Fe(110) surface using DFT

et al. 2023

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Section: Work Functionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Towards quantum corrosion chemistry: screening perfect Cr, Ni sites and stoichiometry on top of an Fe(110) surface using DFT

et al. 2023

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“…(E) Removing oxygen decreases the point defects in the passive film and lowers the film/solution potential drop [35] . (F) Hydrogen sulfide accelerates the film dissolution process and local acidification processes [38] . (G) Increasing the anodic potential transforms the passive film from p-type to n-type [36] .…”

Section: Environmental Response Of Passive Filmmentioning

confidence: 99%

“…Hydrogen sulfide generates hydrogen ions via the reacidification effect [Figure 4F] [38] . Adding hydrogen sulfide does not change the semiconductor type of the passive film, but thins the film [Figure 4F] [38] . A higher anodic current indicates that it accelerates the dissolution of the passive film.…”

Section: Environmental Response Of Passive Filmmentioning

confidence: 99%

A review on pitting corrosion and environmentally assisted cracking on duplex stainless steel

Liu¹,

Du²,

Wang³

et al. 2023

Microstructures

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Duplex stainless steel is widely used in the petrochemical, maritime, and food industries. However, duplex stainless steel has the problem of corrosion failures during use. This topic has not been comprehensively and academically reviewed. These factors motivate the authors to review the developments in the corrosion research of duplex stainless steel. The review found that the primary reasons for the failure of duplex stainless steels are pitting corrosion and chloride-induced stress corrosion cracking. After being submerged in water, the evolution of the passive film on the duplex stainless steel can be loosely classified into three stages: nucleation, rapid growth, and stable growth stages. Instead of dramatic rupture, the passive film rupture process is a continuous metal oxidation process. Environmental factors scarcely affect the double-layer structure of the passive film, but they affect the film's overall thickness, oxide ratio, and defect concentration. The six mechanisms of alloying elements on pitting corrosion are summarized as stabilization, ineffective, soluble precipitates, soluble inclusions, insoluble inclusions, and wrapping mechanisms. In environments containing chlorides, ferrite undergoes pitting corrosion more easily than austenite. However, the pitting corrosion resistance reverses when sufficiently large deformation is used. The mechanisms of pitting corrosion induced by precipitates include the Cr-depletion, microgalvanic, and high-stress field theories. Chloride-induced cracks always initiate in the corrosion pits and blunt when encountering austenite. Phase boundaries are both strong hydrogen traps and rapid hydrogen diffusion pathways during hydrogen-induced stress cracking.

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“…2205 duplex stainless steel is the most widely used type of the stainless steel, and is very prospective [1][2][3][4][5][6]. The mechanical properties and corrosion resistance of its weld joint mainly depend on whether the weld microstructure can keep an appropriate phase ratio.…”

Section: Introductionmentioning

confidence: 99%

Effect of solution treatment on duplex stainless steel weld microstructure of deep-penetration TIG welding

Zou

Zeng²,

Li³

et al. 2022

J. Phys.: Conf. Ser.

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The double-layer gas shielded welding method was adopted in this study. The pure argon gas was used in the inner layer, while a small amount of active gas was added to the outer layer. The welding efficiencies and phase ratios in weld microstructure of 2205 duplex stainless steel under different outer shielding gas conditions were compared. Different solution treatment conditions were applied to the welded joints after welding to explore the effect of solution treatment temperature and time on the weld microstructure. The experimental results showed that the welding efficiency could be improved effectively by adding a proper amount of active gas into the outer protective gas. Proper solution treatment could increase the austenite phase proportion in 2205 duplex stainless steel welds. With the increase of the solution temperature and time, the content of austenite gradually increased, the grain became fine, and the two phases were of uniform distribution.

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Determination of the hydrogen effects on the passive film and the micro-structure at the surface of 2205 duplex stainless steel

Cited by 20 publications

References 59 publications

Towards quantum corrosion chemistry: screening perfect Cr, Ni sites and stoichiometry on top of an Fe(110) surface using DFT

Towards quantum corrosion chemistry: screening perfect Cr, Ni sites and stoichiometry on top of an Fe(110) surface using DFT

A review on pitting corrosion and environmentally assisted cracking on duplex stainless steel

Effect of solution treatment on duplex stainless steel weld microstructure of deep-penetration TIG welding

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