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3 cases · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Capture method: Aspect Before Analysis Detail focus: Through Wall Cracking clear all

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The tool housing ID 1 1/2" presented a longitudinal through wall cracking, in two positions at 180°. The internal side of the housing presented several pits.
66
VIEW
ML00093 / Sep.2017
MIC of a Drilling Tool
M - Low Alloy Medium Carbon QTP - Heat Treated PartAp - O&G Well DrillingCd - Brittle Behavior
Cm - Aspect Before AnalysisDf - Through Wall Cracking
Aspect of the internal surface of the 2" nominal diameter pipe, SCH 40, presenting a circumferential through wall cracking in the pipe, not associated to any of the welded joints. It is possible to see the cracking parallel to the two welded joints: the pipe to weldolet (left side of the figure); and the pipe to flange (right side of the figure).
64
VIEW
ML00012 / Aug.2017
Vibration Induced Fatigue in a 316/316L SS
M - Austenitic Stainless SteelP - Seamless PipeAp - OffshoreCd - Vibration Induced Fatigue
Cm - Aspect Before AnalysisDf - Through Wall Cracking
Visual aspect from the external side of the 14"ND flange butt welded to a pipe, presenting a through wall crack about 5mm to 10mm from the butt welding.
925
VIEW
ML00002 / Jan.2018
Preferential Dissolution and Cracks in SDSS
M - Super Duplex Stainless SteelP - Fabrication WeldAp - PipingCd - Preferential Dissolution
Cm - Aspect Before AnalysisDf - Through Wall Cracking

More from these cases

ML00012 — Vibration Induced Fatigue in a 316/316L SSM - Austenitic Stainless SteelP - Seamless PipeAp - OffshoreCd - Vibration Induced Fatigue
Aspect of the internal surface of the 2" nominal diameter pipe, SCH 40, presenting a circumferential through wall cracking in the pipe, not associated to any of the welded joints. It is possible to see the cracking parallel to the two welded joints: the pipe to weldolet (left side of the figure); and the pipe to flange (right side of the figure).
57
VIEW
ML00012 / Aug.2017
Vibration Induced Fatigue in a 316/316L SS
M - Austenitic Stainless SteelP - Seamless PipeAp - OffshoreCd - Vibration Induced Fatigue
Cm - Aspect Before AnalysisDf - Through Wall Cracking