In-situ detection of single particle impact, erosion/corrosion and surface roughening

Birkin, Peter R.; Lear, R.; Webster, Lee; Powell, L.K.

doi:10.1016/j.wear.2020.203527

Cited by 5 publications

(6 citation statements)

References 27 publications

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“…First, it was shown that the bubble does not get in contact with the solid during most of the dynamics. Instead, there is a liquid film between the bubble and the solid [41] . Second, ions are only formed for some tens of nanoseconds within the bubble.…”

Section: Resultsmentioning

confidence: 99%

“…The values obtained for the repassivation time are consistent with measurements in similar systems. It was reported that the repassivation of an aluminium electrode (kept at a potential of 0 V vs a stainless steel electrode in purified water consisted of 0.1 mol/dm 3 Na 2 SO 4 ) lasts for 100 µs after impingement of a single erodent particle [40] , [41] and 79 µs under collapse of bubbles generated by ultrasonic source [42] . For UNS S31603 stainless steel, current transients occurred over a short period of time between 18 and 38 ms in a 3.5% NaCl solution [43] .…”

Section: Resultsmentioning

confidence: 99%

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In situ measurement of cavitation damage from single bubble collapse using high-speed chronoamperometry

Abedini

Hanke

Reuter

2023

Ultrasonics Sonochemistry

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

In situ measurement of cavitation damage from single bubble collapse using high-speed chronoamperometry

Abedini

Hanke

Reuter

2023

Ultrasonics Sonochemistry

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“…In addition, the application of CP is one of the most common methods to obtain the pure erosion component in erosioncorrosion studies [27]. However, it is found that the local sand impingements could lead to a short surface disturbance when the sand particle enters the interfacial boundary layer between the solid steel surface and bulk solution [28][29][30][31]. The disturbance might lead to the fluctuation of CP potential and current in a short period [28,32].…”

Section: Introductionmentioning

confidence: 99%

“…However, it is found that the local sand impingements could lead to a short surface disturbance when the sand particle enters the interfacial boundary layer between the solid steel surface and bulk solution [28][29][30][31]. The disturbance might lead to the fluctuation of CP potential and current in a short period [28,32]. Once the anodic reaction occurs during the CP disturbance, the following sand impacts might induce local plastic deformation or steel flaking [18,33].…”

Section: Introductionmentioning

confidence: 99%

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Sand impingements on cathodic protection of marine carbon steel in natural sea water

Gao

Zou

Zhao

et al. 2022

Corrosion Engineering, Science and Technology

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In this work, the influence of sand impingements on cathodic protection (CP) of marine carbon steel in natural sea water was studied in comparison with the CP performances in static and flowing sea water without sand particles. Results show that the propagation of local active anodic dissolution at the steel inclusions could be totally inhibited by providing sufficient cathodic current in the sea water free of sand particles. However, the local 'CP shielding', potential fluctuation and sand impingements would enhance the anodic dissolution at inclusions, thus leading to the occurrence of erosion-corrosion under CP. The negative shift of the CP potential could not retard the propagation of erosion-corrosion pits under sand impingements. The synergy of erosion and corrosion might result in long-term failure of local CP.

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Effect of Single Particle High-Speed Impingement on the Electrochemical Step Characteristics of a Stainless-Steel Surface

Liu,

Chai,

Yang

et al. 2024

Materials

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In the process of particle erosion and electrochemical corrosion interaction, the electrolyte flow state change, product film destruction, and matrix structure change caused by particle impact affect the electrochemical corrosion process. Such transient, complex physical and electrochemical changes are difficult to capture because of the short duration of action and the small collision area. The peak, step time, and recovery time in this transient step cycle can indirectly reflect the smoothness and reaction rate of the electrochemical reaction system, and thus characterize the resistance to scouring corrosion coupling damage of metals in liquid–solid two-phase flow. In this study, in order to obtain the electrochemical response at the moment of particle impact, electrochemical monitoring experiments using a specially designed miniature three-electrode system were used to test step-critical values, including step potential, current, and resistance, among others. Meanwhile, an electrochemical step model under particle impact considering boundary layer perturbation was developed. The experimental results reflect the effect law of particle impact velocity and particle size on the peak step and recovery period. Meanwhile, the effect of particle impingement on the electrochemical step of stainless steel in different electrolyte solutions was obtained by comparing the step curves in distilled water and Cl-containing water. The connection between the parameters in the electrochemical step model and in the particle impact, as well as the effect of the variation of these parameters on the surface repassivation process are discussed in this paper. By fitting and modeling the test curves, a new mathematical model of electrochemical step-decay under single-particle impact was obtained, which can be used to characterize the change pattern of electrochemical parameters on the metal surface before and after the impingement.

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In-situ detection of single particle impact, erosion/corrosion and surface roughening

Cited by 5 publications

References 27 publications

In situ measurement of cavitation damage from single bubble collapse using high-speed chronoamperometry

In situ measurement of cavitation damage from single bubble collapse using high-speed chronoamperometry

Sand impingements on cathodic protection of marine carbon steel in natural sea water

Effect of Single Particle High-Speed Impingement on the Electrochemical Step Characteristics of a Stainless-Steel Surface

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