Investigation of oxide film formation on 316L stainless steel in high-temperature aqueous environments

Cheng, Xuequn; Zheng, Feng; Li, Chengtao; Dong, Chaofang; Li, Yong

doi:10.1016/j.electacta.2011.04.127

Cited by 81 publications

(43 citation statements)

References 30 publications

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“…No metallic Fe 0 peak was detected on the surface of oxide film for both specimens. The spectra exhibited a main peak at 711.8 eV on the surface of the oxide film, which could be attributed to FeOOH [3,29]. On the other hand, another peak around 710.4 eV emerged.…”

Section: Xps Resultsmentioning

confidence: 99%

“…On the other hand, another peak around 710.4 eV emerged. Cheng et al [3] and Sun et al [29] owed this peak to Fe 2 O 3 . However, it seems not reasonable based on the E-pH diagram of Fe-H 2 O system at 595 K (simulated PWR environment), because the Fe 2 O 3 is not stable and Fe 3 O 4 is the [28,42].…”

Section: Xps Resultsmentioning

confidence: 99%

“…At the initial stage of oxidation, Fe and Ni dissolved away from Figure 10. Detailed XPS spectra of Fe 2p 3/2 , Cr 2p 3/2 , and Ni 2p 3/2 peaks collected from oxide film of 316LN base metal after 880 h immersion the matrix prior to Cr and consequently the oxide film mainly contains chromites (Cr(OH) 3 and Cr 2 O 3 ). The continuously increasing chromites content formed a Cr-rich inner layer and resisted the further oxidation, acting as a diffusion barrier.…”

Section: Xps Resultsmentioning

confidence: 99%

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Acoustic emission behavior of 316LN stainless steel during oxide film formation in high temperature aqueous environment

Chai

Duan

Wang

et al. 2016

Materials & Corrosion

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Acoustic emission (AE) technique was used to study the oxide film formation of 316LN stainless steel (SS) in high temperature aqueous environment. The morphology and chemical compositions of oxide films of 316LN SS base metal and weld were also investigated by using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray photoelectron spectroscopy (XPS). The results indicated that 316LN SS weld had a higher oxidation resistance than that of base metal due to higher amount of chromium and nickel in the weld material. AE activity and intensity were high during the oxide film formation and decreased gradually with increasing immersion time. The evolution of AE hits was consistent with the oxidation kinetics of 316LN SS base metal and weld. The formation of Cr-enrichment layer and Ni(OH) 2 contributed to the enhancement of oxidation resistance, leading to a continuous decrease of AE activity and intensity. Two types of AE waveforms were detected and the frequency spectra of both types mainly ranged from 0.3 to 0.6 MHz. According to the analyses of AE based b-values and parameters, it could be deduced that AE sources during oxide film formation were the plastic deformation of base metal/weld and oxide film.

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Section: Xps Resultsmentioning

confidence: 99%

Section: Xps Resultsmentioning

confidence: 99%

Section: Xps Resultsmentioning

confidence: 99%

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Acoustic emission behavior of 316LN stainless steel during oxide film formation in high temperature aqueous environment

Chai

Duan

Wang

et al. 2016

Materials & Corrosion

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“…Because of the slow migration of Cr elements, the oxides of Cr and Fe formed in the inner layer. [38] Moreover, the corrosion resistance of the steel is improved by the formation of Cr oxide. [24,26,38] Cr oxide was detected in the 3Cr steel passive film.…”

Section: Composition Of Passive Filmmentioning

confidence: 99%

“…[38] Moreover, the corrosion resistance of the steel is improved by the formation of Cr oxide. [24,26,38] Cr oxide was detected in the 3Cr steel passive film. This also shows that the addition of a small amount of Cr element can change the composition of the passive film.…”

Section: Composition Of Passive Filmmentioning

confidence: 99%

Corrosion resistances of passive films on low‐Cr steel and carbon steel in simulated concrete pore solution

Liu

Cheng

Zhao

et al. 2016

Surface & Interface Analysis

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aThe passive ranges of carbon steel rebar and 3Cr steel rebar in saturated Ca(OH) 2 -simulated concrete pore solution with pH 12.6 were determined by means of cyclic voltammetry and potentiodynamic polarization curves. Chronopotentiometry was used to obtain steady-state conditions for the formation of passive films on rebar samples at different anodic potentials. Electrochemical impedance spectroscopy, Mott-Schottky and X-ray photoelectron spectrometer curves were employed to compare the formed passive films at different potentials. Additionally, cyclic polarization curves were used to compare the corrosion resistances of formed passive films on the two rebars in saturated Ca(OH) 2 -simulated concrete pore solution with different concentration of Cl À . The results show that the passive ranges of the two rebars are all between À0.15 and +0.6 V, and more stable passive films can be formed on both rebars at the anodic potential of +0.3 V. In the absence of Cl À , the stability and corrosion resistance of the passive film formed on the 3Cr rebar are better than those of CS rebar. The passive film of 3Cr steel has the relatively better pitting corrosion resistance than carbon steel in saturated Ca(OH) 2 -simulated concrete pore solution that contains different concentration of Cl À .

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Effects of surface states on the oxidation behavior of 316LN stainless steel in high temperature pressurized water

Guo

Han

Wang

2014

Materials & Corrosion

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Nuclear grade 316LN stainless steel with different surface states are prepared: electropolished and ground to 240 grit. Surface topography, surface Volta potential distribution, and nanohardness distribution on cross‐sectional surface are investigated, respectively. Oxide films on the ground and electropolished samples after immersion in high temperature pressurized (HTP) water for 0.1, 168, and 366 h were studied using various methods. Distinct from electropolished surface, the ground surface is featured by a rugged surface and a heterogeneous distribution of surface Volta potential. A thicker (∼28 µm) cold‐worked layer was introduced by grinding. More crystallites were precipitated on the ground surface, resulting from the existence of high‐energy sites with higher residual strain and higher electrochemical activity and a less protective inner layer. The oxidation rate was reduced by electropolishing and a thinner oxide film was formed, due to the formation of a more protective oxide film with higher content of chromium (Cr). The mechanism of oxide film formation was further discussed.

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Investigation of oxide film formation on 316L stainless steel in high-temperature aqueous environments

Cited by 81 publications

References 30 publications

Acoustic emission behavior of 316LN stainless steel during oxide film formation in high temperature aqueous environment

Acoustic emission behavior of 316LN stainless steel during oxide film formation in high temperature aqueous environment

Corrosion resistances of passive films on low‐Cr steel and carbon steel in simulated concrete pore solution

Effects of surface states on the oxidation behavior of 316LN stainless steel in high temperature pressurized water

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