Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel

Li, Nan; Liu, Ying; Wang, Shenggang; Wang, Fuhui

doi:10.1016/j.electacta.2006.06.023

Cited by 73 publications

(31 citation statements)

References 19 publications

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“…The behavior of metal vacancy during the passive film can be expressed by Nernst-Planck equation [17]. The metal vacancy density in the passive film was obtained by solving the equation [23]:…”

Section: Effect Of Hydrostatic Pressure On the Diffusivity Of Passivementioning

confidence: 99%

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Effect of hydrostatic pressure on the nature of passive film of pure nickel

Liu

Zhang

Shao

et al. 2011

Materials & Corrosion

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The effect of hydrostatic pressure on the nature of passive film of nickel in 3.5% NaCl solution was investigated by means of polarization curves, electrochemical impedance spectroscopy (EIS), and Mott-Schottky measurement. The experimental results revealed that hydrostatic pressure had two opposite effects on passive film of nickel. On one hand, hydrostatic pressure improved the corrosion resistance of passive film of nickel such as the decreased acceptor density. On the other hand, the passive film became unstable and showed a higher diffusivity of acceptor density with the increasing of hydrostatic pressure, which deteriorated the corrosion resistance of passive film of nickel. The deterioration effect had greater influence on the passive film than the improvement effect, which led to the decreasing corrosion resistance of passive film with the increasing of hydrostatic pressure.

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Section: Effect Of Hydrostatic Pressure On the Diffusivity Of Passivementioning

confidence: 99%

“…Accordingly [23], Figure 5. Mott-Schottky plots of nickel at various hydrostatic pressures After calculation and approximation, there is a relation between N A and potential:…”

Section: Effect Of Hydrostatic Pressure On the Diffusivity Of Passivementioning

confidence: 99%

Effect of hydrostatic pressure on the nature of passive film of pure nickel

Liu

Zhang

Shao

et al. 2011

Materials & Corrosion

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“…The phase structures and grain size of the nanocrystalline 304ss had been reported in our previous work [19][20][21], in which the grain size of the experimental sample was found to be remarkably reduced from micro-scale (about 100 µm) to nano-scale(about 50 nm) by the XRD patterns, Scherrer calculation and TEM. Fig.…”

Section: Resultsmentioning

confidence: 99%

<i>In Vitro</i> Corrosion and Haemocompatibility of Bulk Nanocrystalline 304 Stainless Steel by Severe Rolling

Nie

Wang

Shi

et al. 2010

MSF

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Abstract. Bulk nanocrystalline 304 stainless steel (nanocrystalline 304ss) discs had been successfully prepared by the commercial microcrystalline 304 stainless steel (microcrystalline 304ss) plate using severe rolling technique. Micro-hardness was measured to reveal the different mechanical behavior after the severe plastic deformation. The electrochemical corrosion resistance and ion release behavior after immersion of the samples were investigated in Hank's solution for its potential use as implant and orthodontic appliance in body. Furthermore, murine fibroblast cells were indirectly employed to detect cytotoxicity by co-incubation with the extraction from the given materials. Haemocompatibility, consisting of hemolysis test and adhesion of the platelets, was also measured with fresh human whole blood and platelet-rich plasma respectively. Polarization resistance trials indicate that nanocrystalline 304ss is more corrosion resistant in the Hank's solution, with lower current density and superficial corrosion morphologies. The release values of the biotoxic ions after immersion do not exceed the set limit and turn to be well below the critical value necessary to induce allergy and below daily dietary intake level. Cellular interaction is observed via the proliferated feature of the cell line. Hemolysis and platelet adhesion results elucidates that nanocrystalline 304ss is biological and hematologic compatible.

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“…Table 1 indicated that the charge carrier concentration of 2205 stainless steel was 1.35, 2.33 and 11.67 times that of 316L in the three potential districts. It has been proved that dissolved and growth rate of the passive film surface on 2205 stainless steel was faster than that on 316L [11,12] . But once the passive film was damaged, 2205 stainless steel was easier to be self-repaired.…”

Section: Semiconductor Properties Of Passive Filmmentioning

confidence: 97%

Properties of passive film formed on 316L / 2205 stainless steel by Mott-Schottky theory and constant current polarization method

Cheng

2009

Chin. Sci. Bull.

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Semiconductor properties of the passive films formed on 316L and 2205 stainless steel were studied by Electrochemical Impedance Spectroscopy (EIS) in the high-temperature acetic acid. The results showed that the corrosion resistance of 2205 was higher than that of 316L, and the passive films formed on 316L and 2205 stainless steel showed p-type and n-type semiconductor behavior, respectively. Destruction and self-repairing of passive films were studied by using the constant current polarization method. The results showed that for 316L, the self-repairing process would occur when the destruction was lower than the critical extent or it would not do; for 2205, the self-repairing process only happened in a short time when the destruction was in the same extent as 316L.acetic acid, corrosion, semiconductor, stainless steelThe formation, rupture and pitting process of the passive film on stainless steel are determined by the transferation of electron and ion. The charge transmission is driven by the electric field, which is influenced by the electronic structure of passive film. Therefore, the corrosion resistance of stainless steel is closely related to the semiconductor electronic properties of the passive film on its surface [1,2] . Many advanced surface treatment techniques, such as ion beam, electron beam and laser beam, have been developed to modify the passive film with an attempt to enhance the corrosion resistance of stainless steel [3] . Hu et al. [4] proposed an electrochemical surface treatment which could substantially enhance the corrosion resistance of stainless steel. The reason was due to the modification of passive film after treatment in terms of semiconductor property. Zhang et al. [5] studied the semiconductor properties of the passive film formed on 304 stainless steel by use of EIS and photo-electrochemical technique in 0.5 mol/L Na 2 SO 4 solution, and investigated the semiconductor property of the passive film through Mott-Schottky analysis. Li et al. [6] studied the formation of the passive film on Fe and its alloys in neutral solution by using EIS and electrochemical noise technique. The results showed that the electronic nature of the passive film was affected by its formation potential, media types and so on. Hakiki et al. [7] studied molybdenum stainless steel with the method of MottSchottky curves and photoelectricity reaction. The results showed that the passive film on molybdenum stainless steel showed n-type semiconductor behavior, and the donor concentration was significantly decreased with the addition of Mo.The self-repairing abilities of the passive films on 316L and 2205 stainless steel were investigated after suffering different degrees of damage in this work. The semiconductor properties of the passive films formed on their surfaces were studied by using Mott-Schottky theory. The enhancement mechanics of corrosion resistance of stainless steel was discussed in terms of the semiconductor properties of the passive films.

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Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel

Cited by 73 publications

References 19 publications

Effect of hydrostatic pressure on the nature of passive film of pure nickel

Effect of hydrostatic pressure on the nature of passive film of pure nickel

<i>In Vitro</i> Corrosion and Haemocompatibility of Bulk Nanocrystalline 304 Stainless Steel by Severe Rolling

Properties of passive film formed on 316L / 2205 stainless steel by Mott-Schottky theory and constant current polarization method

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