Journal of Failure Analysis and Prevention

, Volume 17, Issue 5, pp 831–837 | Cite as

Chloride Pitting of Steam Generator Boiler Coils

  • David Ifezue
Case History---Peer-Reviewed


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.


Boiler Chloride pitting Iron oxide Scale Energy-dispersive X-ray 


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Copyright information

© ASM International 2017

Authors and Affiliations

  1. 1.Global Corrosion Consultancy LtdManchesterUK

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