Horizontal Position

1 case · 3 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

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Macrography of the horizontal position joint. It was welded in three passes, and one additional pass from the root. Root pass - 153A, 20V, 156mm/s (wire speed), 3.5 mm/s (welding speed), 933 J/mm. Second pass - 162A, 20V, 156mm/s (wire speed), 5.8 mm/s (welding speed), 592 J/mm. Third pass - 155A, 19V, 156mm/s (wire speed), 5.9 mm/s (welding speed), 523 J/mm. Additional at the root - 161A, 23V, 187mm/s (wire speed), 8.5mm/s (welding speed), 467J/mm.
47
VIEW
ML00118 / Jan.2018
Non qualified GMAW of Aluminum Plates
M - Aluminum Magnesium ManganeseP - Welded Testpiece for QualificationAp - ShipCd - Non qualified
Cm - Keller Etched MacroDf - Horizontal Position

More from these cases

ML00118 — Non qualified GMAW of Aluminum PlatesM - Aluminum Magnesium ManganeseP - Welded Testpiece for QualificationAp - ShipCd - Non qualified
Macrographic detail of the horizontal position welded joint, showing the three passes welded from one side and the fourth pass welded after removing the ceramic backing. Big pores and liquation were identified.
40
VIEW
ML00118 / Jan.2018
Non qualified GMAW of Aluminum Plates
M - Aluminum Magnesium ManganeseP - Welded Testpiece for QualificationAp - ShipCd - Non qualified
Cm - Keller Etched MacroDf - Horizontal Position
Tensile testpieces after testing. The rupture of the testpieces occurred at the margin of the weld.
35
VIEW
ML00118 / Jan.2018
Non qualified GMAW of Aluminum Plates
M - Aluminum Magnesium ManganeseP - Welded Testpiece for QualificationAp - ShipCd - Non qualified
Cm - Testpiece aspectDf - Horizontal Position