Effects of hydrogen on passive film and corrosion of aisi 310 stainless steel

The electrochemical behavior and the characteristic of 2205 duplex stainless steel under various hydrogen charging conditions in borate buffer solution containing chloride ion were evaluated by potentiodynamic measurements, electrochemical impedance spectroscopy, capacitance measurements (Mott-Schottky approach) and anodic polarization experiments. The results indicate that the hydrogen generated by cathodic charging process decreased the corrosion resistance of 2205 duplex stainless steel (DSS), especially the pitting resistance of passive film. Due to the hydrogen charging, the semiconductor characteristic of the passive film changed from n-type and p-type coexisting to just n-type existing, and the pitting susceptibility increased. Along with the charging process, the critical concentration of chloride for breakdown of passive film decreased and the repassvation process was prevented by hydrogen.are widely applied in nuclear, petroleum and marine industry because of their good mechanical properties, excellent corrosion resistance and economic advantages [1,2].The corrosion and stress corrosion cracking resistance of duplex stainless steelsDSSs depend on the composition, structure and the passivity of the surface [3][4][5]. The passive film on the surface of stainless steel plays a critical role on protecting duplex stainless steelsDSSs from general and localized corrosion.The hydrogen atoms, generating from electrochemical processes such as pickling, electroplating, cathodic reaction of corrosion and cathodic protection, etc., could be adsorbed on the metal surface and diffuse into metals [6][7][8][9]. Some studies had shown that this process resulted in increasing corrosion rates of alloys [10,11]. Some [12][13][14][15][16] also stated that hydrogen reduced the corrosion resistance and decreased the stability of passive films.It is known that the passive film presents semiconductor properties, which influences the pitting susceptibility of the passive film [17]. Based on measuring capacitance of the interface layer formed in the passive film and the Helmholtz layer, Mott-Schottky analysis is widely used as a method to study the electronic characteristics of passive film. Using this method, Yu [18] and Zeng [19] showed that hydrogen increased the capacitance and donor density of the passive films formed on steels and the increased amount decreased with increasing film formation potentials.High donor densities in passive films corresponded to high pitting susceptibility in general. By the same method, Yang et al. [20,21] found that for the passive films formed on austenitic stainless steels, hydrogen caused a conductivity inversion from p-type to n-type of the passive films. The n-type passive film had a higher pitting susceptibility than p-type passive film.As is known to all, chloride ions play a vital role in the breakdown of a passive film. The chloride ions narrowed the passivation region and improved pitting susceptibility [22,23]. Experimental evidence indicated that there was a synergic effect between h...

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“…Yang's work [20,21] a similar result of conductivity inversion from p-type to n-type for passive film was also found.…”

Section: Effect Of Hydrogen On the Characteristic Of Passive Filmsupporting

confidence: 58%

“…By the same method, Yang et al [20,21] found that for the passive films formed on austenitic stainless steels, hydrogen caused a conductivity inversion from p-type to n-type of the passive films. The n-type passive film had a higher pitting susceptibility than p-type passive film.…”

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confidence: 99%

The electrochemical behavior and characteristic of passive film on 2205 duplex stainless steel under various hydrogen charging conditions

et al. 2015

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“…4,5 Incorporation of hydrogen into the passive film would alter the semiconductivity of the passive layer on AISI 310 stainless steel. 6 In order to fully understand the hydrogen effect on the properties of passive film, various techniques are needed, including surface analysis methods like secondary ion mass spectroscopy (SIMS), 7,8 X-ray photoelectron spectroscopy (XPS), 7 as well as electrochemical methods like electrochemical impedance spectroscopy (EIS), 9,10 electrochemical noise. 11 Previous works mainly focused on hydrogen effects on the electrochemical behaviour and physicochemical property of the surface film, but limited investigations have been conducted focusing on the surface reactivity.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen-enhanced Surface Reactivity of X80 Pipeline Steel observed by Scanning Electrochemical Microscopy

Xia

Zhu

et al. 2016

Electrochemistry

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Effect of hydrogen on the surface reactivity of X80 pipeline steel was studied by scanning electrochemical microscopy (SECM), electrochemical impedance spectroscopy (EIS) and secondary ion mass spectroscopy (SIMS). Hydrogen can enhance the reactivity of passive film formed on X80 pipeline steel, reduce the corrosion resistance and thickness of this passive layer, which is due to an increase in hydroxide in the passive layer.

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“…Yang et al 28 investigated the effects of hydrogen on AISI 310 SS after pitting in a borate buffer solution (pH of 8.5), exhibiting that hydrogen dissolved in 310 SS significantly increases the pitting susceptibility. In their study, the passive film on the non-charged sample was a p-type film, and the presence of hydrogen in 310 SS was found to convert the p-type passive film to n-type passive film.…”

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confidence: 99%

Synergistic Effect of Solid State Hydrogen and Cold Work Pretreatment on Oxide Films Grown on 316L Stainless Steel during Short Term Immersion in Deaerated High Temperature Water at 300 °C

Cui

Zhang

et al. 2020

J. Electrochem. Soc.

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The properties of the oxide films formed on solution-annealed and cold-worked 316L stainless steel (SS) specimens with and without charged hydrogen in deaerated pressurized water reactor primary water at 300°C were investigated. The outer oxide layers of all specimens were composed of magnetite (Fe 3 O 4 ) and NiFe 2 O 4 . Charged hydrogen resulted in larger outer iron-bearing oxide particles forming due to hydrogen-enhanced outward diffusion of iron cations. Prior cold-work accelerates the oxidation was observed. Charged hydrogen led to local cracks in the oxide film and enhanced the penetration oxidation beneath the metal/oxide interface. The Cr-rich inner oxide layer grown on the prior cold-worked specimen with charged hydrogen was thicker than that on the cold-work specimen or the hydrogen-charged specimen, revealing the combined effects of charged hydrogen and prior cold-work on the acceleration of the oxidation process. The working mechanism of the solid-state hydrogen effect on the oxide film was discussed.

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Effects of hydrogen on passive film and corrosion of aisi 310 stainless steel

Cited by 35 publications

References 11 publications

The electrochemical behavior and characteristic of passive film on 2205 duplex stainless steel under various hydrogen charging conditions

The electrochemical behavior and characteristic of passive film on 2205 duplex stainless steel under various hydrogen charging conditions

Hydrogen-enhanced Surface Reactivity of X80 Pipeline Steel observed by Scanning Electrochemical Microscopy

Synergistic Effect of Solid State Hydrogen and Cold Work Pretreatment on Oxide Films Grown on 316L Stainless Steel during Short Term Immersion in Deaerated High Temperature Water at 300 °C

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