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1 case · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Standard: 2304 Capture method: Surface Aspect clear all

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Detail of the external surface of the sleeve where the surface coating was detached, creating a lack of sealing condition.
67
VIEW
ML00147 / Aug.2018
WC Layer Detached from a Cast Lean Duplex
M - Lean Duplex Stainless SteelP - Centrifugal CastingAp - ShipCd - Lack of Sealing
Cm - Surface AspectDf - External Surface

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ML00147 — WC Layer Detached from a Cast Lean DuplexM - Lean Duplex Stainless SteelP - Centrifugal CastingAp - ShipCd - Lack of Sealing
Macroscopic aspect of the OD surface of the sleeve (top of the figure), and a macrography of a longitudinal section (bottom of the figure). In the right side of the figure it is possible to see that the lack of sealing is associated to the detachment of the thermal spray surface layer.
26
VIEW
ML00147 / Aug.2018
WC Layer Detached from a Cast Lean Duplex
M - Lean Duplex Stainless SteelP - Centrifugal CastingAp - ShipCd - Lack of Sealing
Cm - Surface AspectDf - Longitudinal Section