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 |