Optical modeling of nickel-base alloys oxidized in pressurized water reactor

Clair, A. K. Saint; Foucault, M.; Calonne, Olivier; Finot, Éric

doi:10.1016/j.tsf.2012.07.133

Cited by 2 publications

(3 citation statements)

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“…Consequently, it could be drawn that the oxide film was mainly NiO and Ni(Cr,Fe) 2 O 4 . This agreed well with those reported in the literatures for nickel-based alloys [ 26 , 27 , 36 ].…”

Section: Resultssupporting

confidence: 93%

“…The irregularly shaped particles developed gradually both in size and in number ( Figure 4(d1) ). A similar phenomenon had been observed by Clair et al [ 27 ]. The EDS analysis revealed the oxide film as a binary mixture of NiCr 2 O 4 and NiFe 2 O 4 [ 27 ].…”

Section: Resultssupporting

confidence: 88%

“…In addition to the oxidation, pitting corrosion has been frequently observed on the nickel-based alloys such as Alloy 625 and Alloy 718 [ 2 ]. The dissolved ions in high-temperature water are usually related to the oxidation process [ 27 – 29 ]. Kritzer et al investigated the corrosion behavior of Alloy 625 in high-temperature and high-pressure sulfate solutions and found that the metal ion concentrations keep increasing at the beginning of the experiment [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Iron Ion on Corrosion Behavior of Inconel 625 in High-Temperature Water

et al. 2020

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The corrosion behavior of an ultralow iron nickel-based alloy Inconel 625 under high-temperature water has been evaluated. The results show that surface oxidation and pitting were the principal corrosion mechanisms of Inconel 625 during the initial immersion period. The surface layer of the oxide film is first Ni-enriched and then Fe-enriched as immersion time increases. The iron ions dissolved from the autoclave could lead to the formation of NiFe2O4 and have a great influence on the oxidation behavior of Inconel 625. The oxides nucleated by solid-state reactions with selective dissolution of Fe and Ni and then grew up through precipitation of cations from solution.

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“…Consequently, it could be drawn that the oxide film was mainly NiO and Ni(Cr,Fe) 2 O 4 . This agreed well with those reported in the literatures for nickel-based alloys [ 26 , 27 , 36 ].…”

Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 88%