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Chloride Pitting of Steam Generator Boiler Coils

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Abstract

In this case study, pitting observed on boiler coil samples were analyzed. Chloride pitting was confirmed by chlorides identified in energy-dispersive X-ray (EDX) spectra and maps. The pitting failure was caused by initial chloride fluxing of the oxide/scale layering, followed by a chloride concentrating mechanism. The observed pitting can be prevented by water treatment to eliminate the halide ions followed by boiler scale and deposition control treatment.

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Authors and Affiliations

  1. Global Corrosion Consultancy Ltd, 5 Wynne Close, Manchester, M11 3TR, UK

    David Ifezue

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  1. David Ifezue
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Correspondence to David Ifezue.

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Ifezue, D. Chloride Pitting of Steam Generator Boiler Coils. J Fail. Anal. and Preven. 17, 831–837 (2017). https://doi.org/10.1007/s11668-017-0328-x

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  • DOI: https://doi.org/10.1007/s11668-017-0328-x

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