Chloride ions chemically attack chromium oxides

the verdict

SUPPORTED

the evidence backs this

Recorded sources

3 sources for · 0 against

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Chloride ions chemically attack and destabilize the protective chromium oxide (passive) layers on stainless steels and chromium-alloyed metals, leading to localized pitting corrosion.

The analysis

The retrieved papers consistently demonstrate that chloride ions interact with chromium-containing alloys to degrade or penetrate their passive chromium oxide films, causing pitting corrosion and localized breakdown. Multiple studies confirm this mechanism through electrochemical testing and surface analysis.

Evidence for · 3

Pitting Corrosion of Steam Turbine Blading Steels: The Influence of Chromium Content, Temperature, and Chloride Ion Concentration

Recorded source metadata

G. Williams, H.N. McMurray. Pitting Corrosion of Steam Turbine Blading Steels: The Influence of Chromium Content, Temperature, and Chloride Ion Concentration. 2006. https://doi.org/10.5006/1.3278269

Demonstrates that chloride ions induce localized pitting corrosion on chromium-containing steels by breaking down protective passive behavior.

Source citation format

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More for · 2

Effect of Chromium Content on the Passive Film and Corrosion Behavior of Steel Reinforcement in a Simulated Concrete Pore Solution.

Recorded source metadata

Lu H, Tian Y, Wu D. Effect of Chromium Content on the Passive Film and Corrosion Behavior of Steel Reinforcement in a Simulated Concrete Pore Solution.. 2026. https://doi.org/10.3390/ma19101939

Shows that high-chromium steel's superior corrosion resistance stems from a stable Cr2O3 passive film that is eventually degraded by increasing chloride concentrations.

Source citation format

Topography and Corrosion Resistance Characteristics of Fe40Al5Cr0.2ZrB Alloy and X18CrN28 Steel.

Recorded source metadata

Cebulski J, Pasek D, Roskosz S, Popczyk M, Gabor J, Stach S, Wrzalik R, Wojtyniak M, Simlot M, Swinarew AS. Topography and Corrosion Resistance Characteristics of Fe40Al5Cr0.2ZrB Alloy and X18CrN28 Steel.. 2025. https://doi.org/10.3390/ma18235465

Observes heterogeneous chloride-induced attack on chromium-alloyed materials where chlorine is detected at corroded sites alongside disrupted passive layers.

Source citation format

The paper trail · every fact has a biography

first checked01 Aug 2026

judged → SUPPORTED · 8501 Aug 2026

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