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Observation
Location
Mechanism
| Appearance | Observation | Locations | Mechanism | |
|---|---|---|---|---|
|
Fine cracks around studs | Cracking » Not in or near a weld » Transverse | Studded Waterwall | Thermal Fatigue |
|
Forming lap at tube OD | Cracking » Longitudinal » Not in or near a weld | Waterwall | Material Defect |
|
Multiple tight fine cracks | Cracking » Longitudinal » Not in or near a weld | Superheater | Stress Corrosion Cracking |
|
Fish-mouth rupture | Cracking » Not in or near a weld | ReheaterSuperheater | Short-Term Overheat |
|
Fish-mouth opening | Cracking » Longitudinal » Not in or near a weld | Waterwall | Hot Tensile Overload |
|
Irregular cracking | Cracking » Not in or near a weld | Superheater | Creep |
| Appearance | Observation | Location | Mechanism |