Photo-electrochemical imaging of hydrogen-induced damage in stainless steel

Razzini, G.; Maffí, S.; Mussati, G.; Bicelli, L. Peraldo; Mitsi, G.

doi:10.1016/s0010-938x(96)00035-2

Cited by 26 publications

(10 citation statements)

References 15 publications

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“…However, they are incapable of characterizing the contribution of hydrogen to local anodic dissolution and corrosion of the steel [21]. Photo-electrochemical (PEC) technique provides a promising alternative to characterize in situ the effect of hydrogen existing in steel on its corrosion and electrochemical behavior [22][23][24][25]. The basic principle of the PEC technique is based on an improved photo-response owing to the photo-oxidation of hydrogen atoms when a passivated steel loaded with hydrogen is photo-illuminated.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical corrosion behavior of X80 pipeline steel in a near‐neutral pH solution

Xue¹,

Cheng²

2010

Materials & Corrosion

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In this work, the electrochemical corrosion behavior of X80 pipeline steel was investigated in a near-neutral pH solution using electrochemical impedance spectroscopy (EIC) and photo-electrochemical (PEC) measurements as well as X-ray photo-electron spectroscopy (XPS) technique. The effects of hydrogencharging and stress were considered. The results show that the steel is in an active dissolution state, and a layer of corrosion product is formed and deposited on the electrode surface, which is subjected to further oxidation to form ferric oxide and hydroxide. Photo-illumination enhances anodic dissolution of the steel when it is under anodic polarization due to destroying of the corrosion product film. When the steel is under cathodic polarization, the cathodic current density decreases upon laser illumination due to the photo-oxidation of hydrogen atoms generated during cathodic reactions, which behaves as an anodic reaction to offset the cathodic current density. Hydrogen-charging and stress decrease the corrosion resistance of the steel and enhance the dissolution rate of the steel.

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Section: Introductionmentioning

confidence: 99%

Electrochemical corrosion behavior of X80 pipeline steel in a near‐neutral pH solution

Xue¹,

Cheng²

2010

Materials & Corrosion

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“…Panagopoulos et al [9] observed the cracking and blistering of a-brass induced by cathodic hydrogen charging. The blisters in AISI 304 [10] and 430 [11] stainless steel induced by cathodic hydrogen charging has been reported. Solovioff et al [13] found the formation and growth of hydrogen-induced blister in nickel preimplanted with helium.…”

Section: Introductionmentioning

confidence: 99%

A Nucleation Mechanism of Hydrogen Blister in Metals and Alloys

Ren

Zhou

Shan

et al. 2007

Metall Mater Trans A

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The nucleation process of hydrogen blister in metals was investigated through experiments and the mechanism was discussed. Small hydrogen blister in charged Ni-P amorphous coating and steel was studied using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The thermodynamics and kinetics of hydrogen and vacancies in metals are analyzed. Further, an approach of the nucleation mechanism of hydrogen blister is proposed as follows. Atomic hydrogen can induce superabundant vacancies in metals. The superabundant vacancies and hydrogen aggregate into a hydrogen-vacancy cluster (small cavity). The hydrogen atoms in the hydrogen-vacancy cluster become hydrogen molecules that can stabilize the cluster. And the hydrogen blister nucleates. The pressure in the small cavity increases as the hydrogen atoms enter the cavity. The cluster, that is, the hydrogen blister nucleus, grows through vacancies diffusing into it under the action of cluster-hydrogen binding energy and hydrogen pressure. When the blister nucleus grows to a critical size C cr cracks will initiate from the wall of the cavity due to the internal hydrogen pressure.

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“…In this paper, the asymptotic approach to the constant velocity by the delamination is proved analytically. This slow kinetic growth of HIC at constant speed is observed in many experiments (e.g., [23][24][25]28]). …”

Section: Introductionmentioning

confidence: 52%

“…Internal cracks and blisters are formed when atomic hydrogen diffuses into the metal and accumulates as gaseous hydrogen at the planar defects [27,28]. The pressure of gaseous hydrogen inside the trapping sites causes separation of the metal-defect interface, forming a cavity which grows in the same plane parallel to the pipeline (e.g., [23,29]).…”

Section: Introductionmentioning

confidence: 99%

Asymptotic approach to the constant velocity of hydrogen delamination growth

Balueva

2008

International Journal of Mechanical Sciences

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Photo-electrochemical imaging of hydrogen-induced damage in stainless steel

Cited by 26 publications

References 15 publications

Electrochemical corrosion behavior of X80 pipeline steel in a near‐neutral pH solution

Electrochemical corrosion behavior of X80 pipeline steel in a near‐neutral pH solution

A Nucleation Mechanism of Hydrogen Blister in Metals and Alloys

Asymptotic approach to the constant velocity of hydrogen delamination growth

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