Influence of surface finishes on corrosion behaviour of CN108 alloy for condenser tubes in sea water

Cigna, R.; Gusmano, G.; Zama, Masato

doi:10.1016/0254-0584(89)90074-6

Cited by 7 publications

(1 citation statement)

References 4 publications

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“…Ni2p peaks are assigned to both Ni 2 O 3 and Ni(OH) 2 from the separation of two components that exceeded 3.5 eV (data not shown). These data are consistent with those reported previously for alloy samples exposed to air [34].…”

Section: Surface Composition and Electrolytic Concentrations (Xps And...supporting

confidence: 93%

Effect of Sulfide-Containing Solutions on the Corrosion of Cu-Ni Alloys; Electrochemical and Surface Studies

et al. 2015

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The effect of sulfide ions on electrochemically grown films over 90Cu-10Ni alloy in sulfuric acid, sodium sulfate and chloride-containing electrolytes at different polarization time intervals is investigated. The highest corrosion rates are in solutions of sulfate containing chloride in presence of 20 ppm sulfide. The lowest rate for copper dissolution is in sulfuric acid containing chloride in presence of sulfide. The rate of corrosion increases with increasing temperature and the activation energy was highest in sodium sulfate. Nickel dissolution is highest in presence of sulfide. XPS measurements revealed that Cu2S was formed and resulted in further dissolution of the films protecting the alloy. Noticeable decrease in polarization resistance of the alloy is observed as the film dissolution increases and metallic concentration in the electrolytic side increases. EIS results showed that in presence of sulfide the oxide film resistance in sulfate-containing electrolytes is higher than in chloride.

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Section: Surface Composition and Electrolytic Concentrations (Xps And...supporting

confidence: 93%

Effect of Sulfide-Containing Solutions on the Corrosion of Cu-Ni Alloys; Electrochemical and Surface Studies

et al. 2015

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Investigations into the relationship between the Corrosion behaviour of CN 108 alloy in sea water and the chemical composition of its corrosion products

Gusmano

Montesperelli

Traversa

et al. 1992

Materials & Corrosion

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This paper deals with the investigation of the corrosion behaviour of CN 108 alloy in sea water by means of surface analysis (SEM, EDS and X Y S ) . The results with samples with different surface finishes (as-received or pickled), tested in natural or artificial sea water, are discussed. The chemical composition and the morphology of the corrosion products were established and related to the corrosion behaviour of the alloy. In highly chlorinated sca water the growth of a cathodic film, strongly enriched in manganese, and pitting initiation at the grain boundaries, were observed on both as-received and pickled samples. The occurrence of gcneral uneven corrosion in unchlorinated sea water is related to

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Corrosion Inhibition Performance of Triazole Derivatives on Copper-Nickel Alloy in 3.5 wt.% NaCl Solution

Jiang

Sheng

Liu

et al. 2015

J. of Materi Eng and Perform

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Influence of surface finishes on corrosion behaviour of CN108 alloy for condenser tubes in sea water

Cited by 7 publications

References 4 publications

Effect of Sulfide-Containing Solutions on the Corrosion of Cu-Ni Alloys; Electrochemical and Surface Studies

Effect of Sulfide-Containing Solutions on the Corrosion of Cu-Ni Alloys; Electrochemical and Surface Studies

Investigations into the relationship between the Corrosion behaviour of CN 108 alloy in sea water and the chemical composition of its corrosion products

Corrosion Inhibition Performance of Triazole Derivatives on Copper-Nickel Alloy in 3.5 wt.% NaCl Solution

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