Damage

1 case · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Ductile Behavior Microstructure: Coating Layer Capture method: Optical Microscope clear all

Damage — sub-branches

Layer Detachment 2

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Micrography of a longitudinal section, at the damage surface of the pin, where the thermal spray layer was partially detached and broken. The through layer breaking is ductile, typical of an overloading condition caused by the localized bending of the pin.
109
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ML00146 / Jul.2018
Plastic Deformation of a SDSS Riser Pin
M - Super Duplex Stainless SteelP - PinAp - O&G Well DrillingCd - Bending
Cm - NaOH Electrolytic Etched MicroDf - Layer Detachment

More from these cases

ML00146 — Plastic Deformation of a SDSS Riser PinM - Super Duplex Stainless SteelP - PinAp - O&G Well DrillingCd - Bending
Micrographic detail of the damage surface layer, detached and broken. The substrate is not affected and the rupture of the layer is typically by overloading.
117
VIEW
ML00146 / Jul.2018
Plastic Deformation of a SDSS Riser Pin
M - Super Duplex Stainless SteelP - PinAp - O&G Well DrillingCd - Bending
Cm - NaOH Electrolytic Etched MicroDf - Layer Detachment