Aspect Before Analysis

2 cases · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

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Aspect of the internal surface of the tube, presenting the aspect of the root, after welding and heat treatment.
63
VIEW
ML00129 / Apr.2018
Non qualified WPS for High Strength Steel
M - Low Alloy Medium Carbon QTP - Welded Testpiece for QualificationAp - Oil and GasCd - Non qualified
Cm - Aspect Before AnalysisDf - Internal Surface
The welded joint of the flat position is shown from the root side. It is possible to see that the use of the backing generated the possibility for melting the base metal out of the groove, without detection of this condition during welding, responsible for creating defects and avoiding the WPS qualification.
102
VIEW
ML00118 / Jan.2018
Non qualified GMAW of Aluminum Plates
M - Aluminum Magnesium ManganeseP - Welded Testpiece for QualificationAp - ShipCd - Non qualified
Cm - Aspect Before AnalysisDf - General View

More from these cases

ML00129 — Non qualified WPS for High Strength SteelM - Low Alloy Medium Carbon QTP - Welded Testpiece for QualificationAp - Oil and GasCd - Non qualified
Aspect of the external surface of the tube, presenting the aspect of the cap and temper bead passes, after welding and heat treatment.
54
VIEW
ML00129 / Apr.2018
Non qualified WPS for High Strength Steel
M - Low Alloy Medium Carbon QTP - Welded Testpiece for QualificationAp - Oil and GasCd - Non qualified
Cm - Aspect Before AnalysisDf - External Surface
ML00118 — Non qualified GMAW of Aluminum PlatesM - Aluminum Magnesium ManganeseP - Welded Testpiece for QualificationAp - ShipCd - Non qualified
The welded joint of the vertical up position is shown from the root side. It is possible to see that the use of the backing generated the possibility for melting the base metal out of the groove, without detection of this condition during welding, responsible for creating defects and avoiding the WPS qualification.
122
VIEW
ML00118 / Jan.2018
Non qualified GMAW of Aluminum Plates
M - Aluminum Magnesium ManganeseP - Welded Testpiece for QualificationAp - ShipCd - Non qualified
Cm - Aspect Before AnalysisDf - General View