Observation: Cracking

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Observation
Location
Mechanism
Appearance Observation Locations Mechanism
Catastrophic failure associated with weld overlay Catastrophic failure associated with weld overlay » »
Fine cracks around studs Fine cracks around studs » »
Circumferential cracking Circumferential cracking » »
Forming lap at tube OD Forming lap at tube OD » »
Multiple tight fine cracks Multiple tight fine cracks » »
Fish-mouth rupture Fish-mouth rupture »
Fish-mouth opening Fish-mouth opening » »
Irregular cracking Irregular cracking »
Short longitudinal cracks with numerous parallel cracks Short longitudinal cracks with numerous parallel cracks » »
Multitude of cracks parallel to tube Multitude of cracks parallel to tube » »
Longitudinal crack at bend Longitudinal crack at bend »
Transverse cracking in the rolled portion of tube where it is inserted into the drum Transverse cracking in the rolled portion of tube where it is inserted into the drum
Complete failure at weld Complete failure at weld » »
Transverse crack near support Transverse crack near support » »
Brittle fracture in heat affected zone of a weld Brittle fracture in heat affected zone of a weld » »
Multiple cracks associated with attachment on outside of tube Multiple cracks associated with attachment on outside of tube » »
Longitudinal ID corrosion-fatigue cracks Longitudinal ID corrosion-fatigue cracks » »
Longitudinal cracks adjacent to weld Longitudinal cracks adjacent to weld » »
Thick-lipped rupture and adjacent longitudinal fissuring Thick-lipped rupture and adjacent longitudinal fissuring » »
Complete weld separation Complete weld separation » »
Cracks close to attachments Cracks close to attachments » »
Appearance Observation Location Mechanism