Appearance | Observation | Locations | Mechanism | |
---|---|---|---|---|
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sharply defined hole | Holes, Pits, Gouges » Waterside | Economizer | Corrosion Fatigue |
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Thinning on inside of a U-bend or other change in direction | Holes, Pits, Gouges » Waterside | Economizer | Flow Accelerated Corrosion (FAC) |
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Multiple cracks associated with attachment on outside of tube | Cracking » In or near weld or attachment » Longitudinal or Random | EconomizerWaterwall | Corrosion Fatigue |
Appearance | Observation | Location | Mechanism |