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1 case · 3 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Coating Layer Capture method: Optical Microscope Detail focus: Microstructure clear all

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Micrography of the longitudinal section, in the center of the thickness of the pin, presenting an aligned ferritic-austeinitic structure.
180
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 - Ferrite and Austenite

More from these cases

ML00146 — Plastic Deformation of a SDSS Riser PinM - Super Duplex Stainless SteelP - PinAp - O&G Well DrillingCd - Bending
Micrography of a longitudinal section, at the surface of the pin, where the thermal spray layer is sound. The thickness of the layer is about 0.3 mm.
168
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 - Coating Layer
Micrographic detail of a longitudinal section of the pin, at the surface, evidencing the thermal spray layer, about 0.3 mm. The layer presents typical characteristics of multiple layers, low amount of entrapped oxides and pores. The interface presents a high roughness level for a good adherence and some entrapped oxides. The structure of the SDSS substrate did not show thermal effects.
154
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 - Coating Layer