Electrochemical characteristics under cavitation-erosion for STS 316L in seawater

Kim, Seong-Jong; Lee, Seungjun; Chong, Sang-Ok

doi:10.1016/j.materresbull.2014.03.029

Cited by 23 publications

(6 citation statements)

References 10 publications

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“…For the stainless steel 1Cr18Ni9Ti (Fig. 5(b)), cavitation had little influence on its cathodic reaction process, which was in agreement with the results of other stainless steels [23,24]. The dissolution and regeneration of passive film and the repassivation of bare metal surfaces in stainless steel under cavitation condition were expected to cause activated electrochemical dissolution and increase anodic current density because of the rough surface and more weak sites for the corrosion attack.…”

Section: Microstructural Characterizationsupporting

confidence: 84%

Effect of ultrasonic cavitation erosion on corrosion behavior of high-velocity oxygen-fuel (HVOF) sprayed near-nanostructured WC–10Co–4Cr coating

Hong

Zhang

et al. 2015

Ultrasonics Sonochemistry

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The effect of ultrasonic cavitation erosion on electrochemical corrosion behavior of high-velocity oxygen-fuel (HVOF) sprayed near-nanostructured WC-10Co-4Cr coating in 3.5 wt.% NaCl solution, was investigated using free corrosion potential, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) in comparison with stainless steel 1Cr18Ni9Ti. The results showed that cavitation erosion strongly enhanced the cathodic current density, shifted the free corrosion potential in the anodic direction, and reduced the magnitude of impedance of the coating. The impedance of the coating decreased more slowly under cavitation conditions than that of the stainless steel 1Cr18Ni9Ti, suggesting that corrosion behavior of the coating was less affected by cavitation erosion than that of the stainless steel.

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Section: Microstructural Characterizationsupporting

confidence: 84%

Effect of ultrasonic cavitation erosion on corrosion behavior of high-velocity oxygen-fuel (HVOF) sprayed near-nanostructured WC–10Co–4Cr coating

Hong

Zhang

et al. 2015

Ultrasonics Sonochemistry

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“…Solution-annealed 316L SS (heated at 1050 • C for 1 h and then quenched in water) was selected as the experimental material due to its superior corrosion resistance and good mechanical properties [29][30][31]. The chemical composition of 316L SS used in the experiment is shown in Table 1, and the dimensions of the CE samples are displayed in Figure 1.…”

Section: Methodsmentioning

confidence: 99%

Effect of Cavitation Intensity on the Cavitation Erosion Behavior of 316L Stainless Steel in 3.5 wt.% NaCl Solution

Zhang

et al. 2022

Metals

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In this study, the cavitation erosion behavior of 316L stainless steel under different cavitation intensities in 3.5 wt.% NaCl solution was investigated with scanning electron microscopy and various electrochemical tests. Results indicated that cavitation intensity corresponding to CE amplitude of 5 μm was lower than that of the mechanical bearing capacity of passive films. When subjected to cavitation erosion (CE), Open circuit potential (OCP) shifted to the noble direction instantaneously, which was mainly attributed to enhanced oxygen transfer of the cathode due to stirring effects of CE. By contrast, high cavitation intensities corresponding to CE amplitudes of 25 μm and 55 μm exceeded the mechanical bearing capacity of passive films, causing significantly reduced OCP associated with metal dissolution of the anode from mechanical damage. Potentiostatic polarization and Mott–Schottky tests showed that 316L SS subjected to low cavitation intensities displayed good repassivation properties. However, repassivation performance was markedly weakened when high cavitation intensity was applied, resulting in weaker protection of the passive films with high carrier density.

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“…A vibratory apparatus is the most popular device in testing cavitation erosion resistance [15][16][17][18][19][20][21][22][23][24]. Cavitation is generated by oscillating horn.…”

Section: Vibratory Apparatusmentioning

confidence: 99%

“…The vibratory device has many advantages. It allows performing cavitation test in various liquids, including sea water or artificial sea water [21], blood [22] and liquids with solid particles [24]. The results of testing are repeatable.…”

Section: Fig 3 Schematic Of Vibratory Cavitation Erosion Apparatus;mentioning

confidence: 99%

Cavitation Erosion – Phenomenon and Test Rigs

Krella

Zakrzewska

2018

Advances in Materials Science

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The cavitation and cavitation erosion phenomenon have been shortly presented. The main four types of test rigs to investigate the cavitation erosion resistance have been shown. Each type of test design is described and an example of a design is shown. A special attention has been payed to the designs described in the International ASTM Standards: a vibratory design and a cavitating jet cell. There was shown that the design of a test device and the test conditions affect the resistance to cavitation erosion of a material.

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Electrochemical characteristics under cavitation-erosion for STS 316L in seawater

Cited by 23 publications

References 10 publications

Effect of ultrasonic cavitation erosion on corrosion behavior of high-velocity oxygen-fuel (HVOF) sprayed near-nanostructured WC–10Co–4Cr coating

Effect of ultrasonic cavitation erosion on corrosion behavior of high-velocity oxygen-fuel (HVOF) sprayed near-nanostructured WC–10Co–4Cr coating

Effect of Cavitation Intensity on the Cavitation Erosion Behavior of 316L Stainless Steel in 3.5 wt.% NaCl Solution

Cavitation Erosion – Phenomenon and Test Rigs

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