Effect of nitrogen on the corrosion behavior of austenitic stainless steel in chloride solutions

Fathy M. Bayoumi; Wafaa A. Ghanem

doi:10.1016/j.matlet.2005.05.063

Effect of nitrogen on the corrosion behavior of austenitic stainless steel in chloride solutions

Fathy M. Bayoumi, Wafaa A. Ghanem

Research output: Contribution to journal › Article › peer-review

96 Citations (Scopus)

Abstract

The effect of partial replacement of nickel with nitrogen on the mechanism of localized corrosion resistance and repassivation for nitrogen-bearing stainless steel was investigated using anodic potentiodynamic polarization technique. The solutions used for this study contained 0.0, 0.05 and 0.33 M Fe³⁺ for solutions I, II and III, respectively, in a total Cl ^- ion concentration 1 M. The pitting attack was found to be retarded by nitrogen addition and the samples were able to passivate as the nitrogen increase. Addition of nitrogen allows the decrease in the wt.% of Ni, but to a certain limit. Nitrogen is adsorbed on the interface of the metal oxide and results in the repulsion of Cl^- ions. Moreover, it reacts with H ⁺ ions in the solution leading to higher pH, which explains the retardation effect of nitrogen to corrosion.

Original language	English
Pages (from-to)	3311-3314
Number of pages	4
Journal	Materials Letters
Volume	59
Issue number	26
DOIs	https://doi.org/10.1016/j.matlet.2005.05.063
Publication status	Published - Nov 2005
Externally published	Yes

Keywords

Anodic polarization
Localized corrosion
Nitrogen stainless steel
Pitting corrosion

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2005.05.063

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title = "Effect of nitrogen on the corrosion behavior of austenitic stainless steel in chloride solutions",

abstract = "The effect of partial replacement of nickel with nitrogen on the mechanism of localized corrosion resistance and repassivation for nitrogen-bearing stainless steel was investigated using anodic potentiodynamic polarization technique. The solutions used for this study contained 0.0, 0.05 and 0.33 M Fe3+ for solutions I, II and III, respectively, in a total Cl - ion concentration 1 M. The pitting attack was found to be retarded by nitrogen addition and the samples were able to passivate as the nitrogen increase. Addition of nitrogen allows the decrease in the wt.% of Ni, but to a certain limit. Nitrogen is adsorbed on the interface of the metal oxide and results in the repulsion of Cl- ions. Moreover, it reacts with H + ions in the solution leading to higher pH, which explains the retardation effect of nitrogen to corrosion.",

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journal = "Materials Letters",

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T1 - Effect of nitrogen on the corrosion behavior of austenitic stainless steel in chloride solutions

AU - Bayoumi, Fathy M.

AU - Ghanem, Wafaa A.

PY - 2005/11

Y1 - 2005/11

N2 - The effect of partial replacement of nickel with nitrogen on the mechanism of localized corrosion resistance and repassivation for nitrogen-bearing stainless steel was investigated using anodic potentiodynamic polarization technique. The solutions used for this study contained 0.0, 0.05 and 0.33 M Fe3+ for solutions I, II and III, respectively, in a total Cl - ion concentration 1 M. The pitting attack was found to be retarded by nitrogen addition and the samples were able to passivate as the nitrogen increase. Addition of nitrogen allows the decrease in the wt.% of Ni, but to a certain limit. Nitrogen is adsorbed on the interface of the metal oxide and results in the repulsion of Cl- ions. Moreover, it reacts with H + ions in the solution leading to higher pH, which explains the retardation effect of nitrogen to corrosion.

AB - The effect of partial replacement of nickel with nitrogen on the mechanism of localized corrosion resistance and repassivation for nitrogen-bearing stainless steel was investigated using anodic potentiodynamic polarization technique. The solutions used for this study contained 0.0, 0.05 and 0.33 M Fe3+ for solutions I, II and III, respectively, in a total Cl - ion concentration 1 M. The pitting attack was found to be retarded by nitrogen addition and the samples were able to passivate as the nitrogen increase. Addition of nitrogen allows the decrease in the wt.% of Ni, but to a certain limit. Nitrogen is adsorbed on the interface of the metal oxide and results in the repulsion of Cl- ions. Moreover, it reacts with H + ions in the solution leading to higher pH, which explains the retardation effect of nitrogen to corrosion.

KW - Anodic polarization

KW - Localized corrosion

KW - Nitrogen stainless steel

KW - Pitting corrosion

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DO - 10.1016/j.matlet.2005.05.063

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JO - Materials Letters

JF - Materials Letters

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Effect of nitrogen on the corrosion behavior of austenitic stainless steel in chloride solutions

Abstract

Keywords

ASJC Scopus subject areas

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