Corrosion of low-temperature nitrided molybdenum-bearing stainless steels

Kuczynska-Wydorska, M.; Flis-Kabulska, I.; Flis, J.

doi:10.1016/j.corsci.2011.01.054

Cited by 17 publications

(7 citation statements)

References 31 publications

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“…The O 2− ions produced by OH − deprotonation prefer to migrate towards the metal surface, promoting the formation of denser Cr 2 O 3 . Moreover, MoO 2 increases the homogeneity of the passive film as the anion-selective layer prevents the migration of the inner cations, and a positive ionic space charge is formed [ 60 , 61 ]. An increase in Cr 2 O 3 density provides better protection [ 62 ].…”

Section: Resultsmentioning

confidence: 99%

Combined role of molybdenum and nitrogen in Limiting corrosion and pitting of super austenitic stainless steel

Li,

Lang,

Chen

et al. 2024

Heliyon

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Section: Resultsmentioning

confidence: 99%

Combined role of molybdenum and nitrogen in Limiting corrosion and pitting of super austenitic stainless steel

Li,

Lang,

Chen

et al. 2024

Heliyon

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“…Peak III at 0.57 V SCE reflects the reoxidation reaction of Cr 3+ to Cr 6+ . In addition, the rapid increase in the current density above approximately 0.65 V SCE is due to oxygen evolution (that is, transpassive reaction) [25,26,27,28]. The polarization curves exhibit that the potential range for the stable passivity extends from E corr (approximately −0.66 V SCE ) to approximately 0.65 V SCE .…”

Section: Resultsmentioning

confidence: 99%

Investigation of the Localized Corrosion and Passive Behavior of Type 304 Stainless Steels with 0.2–1.8 wt % B

Jang

Lee

et al. 2018

Materials

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The pitting corrosion resistance and passive behavior of type 304 borated stainless steels (Febalance–18Cr–12Ni–1.5Mn–(0.19, 0.78, and 1.76 wt %)B) manufactured through conventional ingot metallurgy were investigated. The alloys were composed of an austenitic matrix and Cr2B phase, and the volume fraction of Cr2B increased from 1.68 to 22.66 vol % as the B content increased from 0.19 to 1.76 wt %. Potentiodynamic polarization tests measured in aqueous NaCl solutions revealed that the pitting corrosion resistance was reduced as the B content increased and the pits were initiated at the matrix adjacent to the Cr2B phase. It was found that the reduced resistance to pitting corrosion by B addition was due to the formation of more defective and thinner passive film and increased pit initiation sites in the matrix.

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“…For instance, MoO4 2− with Mo 6+ prevents Cl ion from accumulating on the passivated metal surface [24]. In addition, MoO2 with Mo 4+ can also increase the stability of passivation film [25].…”

Section: Discussionmentioning

confidence: 99%

The Pitting Corrosion Behavior of the Austenitic Stainless Steel 308L-316L Welded Joint

et al. 2020

Metals

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The pitting corrosion resistance of the austenitic stainless steel 308L-316L welded joint was investigated by electrochemical tests. It is found that the weld zone was the most critical for pits to initiate in the welded joint due to relatively instable passive film with few Mo and inhomogeneous passive film induced by multiple (Mn, Al, and Si) oxides and continuous network of 13.94 vol.% δ ferrites. By statistical analysis, 53.8% pits initiated at (Mn, Al, and Si) oxides, 23.0% in austenite, and 23.2% at interface between ferrite and austenite. In addition, heat-affected zone was prone to have pitting corrosion compared with the base metal since residual strain was much higher in the region.

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Corrosion of low-temperature nitrided molybdenum-bearing stainless steels

Cited by 17 publications

References 31 publications

Combined role of molybdenum and nitrogen in Limiting corrosion and pitting of super austenitic stainless steel

Combined role of molybdenum and nitrogen in Limiting corrosion and pitting of super austenitic stainless steel

Investigation of the Localized Corrosion and Passive Behavior of Type 304 Stainless Steels with 0.2–1.8 wt % B

The Pitting Corrosion Behavior of the Austenitic Stainless Steel 308L-316L Welded Joint

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