Passivity of 316L stainless steel in borate buffer solution studied by Mott–Schottky analysis, atomic absorption spectrometry and X-ray photoelectron spectroscopy

Zheng, Feng; Cheng, Xuequn; Dong, Chaofang; Xu, Lin; Li, Yong

doi:10.1016/j.corsci.2010.07.013

Cited by 368 publications

(129 citation statements)

References 63 publications

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“…It consists in the transformation of real axis into the imaginary axis and the imaginary axis into the real axis. This procedure was recently used by Feng et al [41] in the study of passivity of 316L stainless steel in borate buffer solution. Its detailed explanation is given in the book of Orazem and Tribolet [38] and by Macdonald [42].…”

Section: Eis Measurementsmentioning

confidence: 99%

Electrochemical synthesis of oxide nanotubes on Ti6Al7Nb alloy and their interaction with the simulated body fluid

Stępień

Handzlik

Fitzner

2016

J Solid State Electrochem

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The aim of the present work was to investigate electrochemical behavior of the Ti6Al7Nb alloy in the simulated body fluid (SBF) containing Ca 2+ , HCO 3 − , and HPO 4 2 − ions. At first, optimal conditions necessary for oxide nanotube formation were determined. The experiments were conducted in the 1 M (NH 4 ) 2 SO 4 with 0.5 wt% NH 4 F electrolyte at room temperature. Anodization of the alloy samples was carried out under variable external voltage U in the range from 10 to 40 V at room temperature. Obtained surface morphology was examined by SEM and X-ray techniques. Nanotube diameter was calculated and correlated with the imposed voltage. Having control over the size of nanotubes, samples with the obtained nanostructures of a chosen diameter were immersed into SBF solution with pH = 7.4 for a fixed period of time. Then, they were removed from the fluid and subjected to the electrochemical investigation. Corrosion current and corrosion potential were determined, and it was found that the best anticorrosion properties were obtained for heat-treated nanotube layer: i corr = 39 nA/cm 2 and E corr = −0.236 V vs Ag/AgCl. Finally, the interaction between the oxide surface and the solution was studied using polarization and electrochemical impedance spectroscopy (EIS) techniques.

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Section: Eis Measurementsmentioning

confidence: 99%

Electrochemical synthesis of oxide nanotubes on Ti6Al7Nb alloy and their interaction with the simulated body fluid

Stępień

Handzlik

Fitzner

2016

J Solid State Electrochem

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“…To reduce the air-formed oxide film, the stainless steels surface was often cathodically polarised, particularly to investigate passivity by Mott-Schottky analysis [15][16][17][18][19][20]. It was also reported that the reproducibility of electrochemical measurements performed on passive films was improved after cathodic polarisation [21,22].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical characterisation of a martensitic stainless steel in a neutral chloride solution

Marcelin

Pébère

Régnier

2013

Electrochimica Acta

151

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To cite this version:Sabrina Marcelin, Nadine Pébère, Sophie Régnier. Electrochemical characterisation of a martensitic stainless steel in a neutral chloride solution. Electrochimica Acta, Elsevier, 2013, vol. 87, pp. 32-40 a b s t r a c tThis paper focuses on the characterisation of the electrochemical behaviour of a martensitic stainless steel in 0.1 M NaCl + 0.04 M Na 2 SO 4 solution and is a part of a study devoted to crevice corrosion resistance of stainless steels. Polarisation curves and electrochemical impedance measurements were obtained for different experimental conditions in bulk electrolyte. X-ray photoelectron spectroscopy (XPS) was used to analyse the passive films. At the corrosion potential, the stainless steel was in the passive state and the corrosion process was controlled by the properties of the passive film formed during air exposure. During immersion in the deaerated solution, the passive film was only slightly modified, whereas it was altered both in composition and thickness during immersion in the aerated solution. After cathodic polarisation of the stainless steel electrode surface, the oxide film was almost totally removed and the surface appeared to be uniformly active for oxygen reduction. The new passive film, formed at the corrosion potential, was enriched with iron species and less protective. Impedance diagrams allowed the characterisation of both the oxide film (high-frequency range) and the charge transfer process (low-frequency range).

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“…Before i diss equaled to i film , metal anodic dissolution dominated the of charge density (q diss ) was consumed for anodic dissolution from the current peak to θ = 1. Assuming metal dissolved uniformly from the abraded surface, using the equivalent weight (56.18 g·mol -1 ) and density (7.99 g·cm -3 ) for 316L SS passive film 20) , the corresponding vertical depth (h diss ) for dissolution was approximately 0.24 nm. The results under other applied potential were compared in Table 3.…”

Section: Current Transients Analysismentioning

confidence: 99%

The Kinetics of Anodic Dissolution and Repassivation on 316L Stainless Steel in Borate Buffer Solution Studied by Abrading Electrode Technique

Xu¹,

Sun²,

Yu³

et al. 2015

Corrosion Science and Technology

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The capacity of passive metal to repassivate after film damage determines the development of local corrosion and the resistance to corrosion failures. In this work, the repassivation kinetics of 316L stainless steel (316L SS) was investigated in borate buffer solution (pH 9.1) using a novel abrading electrode technique. The repassivation kinetics was analyzed in terms of the current density flowing from freshly bare 316L SS surface as measured by a potentiostatic method. During the early phase of decay (t < 2 s), according to the Avrami kinetics-based film growth model, the transient current was separated into anodic dissolution (i diss ) and film formation (i film ) components and analyzed individually. The film reformation rate and thickness were compared according to applied potential. Anodic dissolution initially dominated the repassivation for a short time, and the amount of dissolution increased with increasing applied potential in the passive region. Film growth at higher potentials occurred more rapidly compared to at lower potentials. Increasing the applied potential from 0 V SCE to 0.8 V SCE resulted in a thicker passive film (0.12 to 0.52 nm). If the oxide monolayer covered the entire bare surface (θ=1), the electric field strength through the thin passive film reached 1.6 × 10 7 V/cm.

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Passivity of 316L stainless steel in borate buffer solution studied by Mott–Schottky analysis, atomic absorption spectrometry and X-ray photoelectron spectroscopy

Cited by 368 publications

References 63 publications

Electrochemical synthesis of oxide nanotubes on Ti6Al7Nb alloy and their interaction with the simulated body fluid

Electrochemical synthesis of oxide nanotubes on Ti6Al7Nb alloy and their interaction with the simulated body fluid

Electrochemical characterisation of a martensitic stainless steel in a neutral chloride solution

The Kinetics of Anodic Dissolution and Repassivation on 316L Stainless Steel in Borate Buffer Solution Studied by Abrading Electrode Technique

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