Combinations

2 cases · 6 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Capture method: Chromic Acid Electrolytic Etched clear all

Combinations — sub-branches

Carbon Steel / Stainless Steel 1LAS / Ni Alloy 2

Results

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Low magnification micrography of a longitudinal section of the pipe at the interface with the clad plate, with electrolytic etch that reveals the clad plate structure (to the right side of the image), as well as the clad interface.
43
VIEW
ML00133 / May.2018
Seam Welded Pipe Cladded with Alloy 625
M - LAS / Ni AlloyP - Longitudinal Seam Welded PipeAp - Oil and GasCd - Welding
Cm - Chromic Acid Electrolytic EtchedDf - Clad Interface
Low magnification micrography of a longitudinal section of the pipe at the interface between overlay layers, with electrolytic etch that reveals the Ni alloy structure, large columnar grains with celular morphology.
65
VIEW
ML00132 / May.2018
Seamless Pipe Overlaid with Alloy 625
M - LAS / Ni AlloyP - Seamless PipeAp - Oil and GasCd - Welding
Cm - Chromic Acid Electrolytic EtchedDf - Weld Metal

More from these cases

ML00133 — Seam Welded Pipe Cladded with Alloy 625M - LAS / Ni AlloyP - Longitudinal Seam Welded PipeAp - Oil and GasCd - Welding
Micrography of a longitudinal section of the pipe at the clad plate, with electrolytic etch, that sligthly reveals the granular structure of the clad plate, with some precipitates.
39
VIEW
ML00133 / May.2018
Seam Welded Pipe Cladded with Alloy 625
M - LAS / Ni AlloyP - Longitudinal Seam Welded PipeAp - Oil and GasCd - Welding
Cm - Chromic Acid Electrolytic EtchedDf - Austenite
Micrographic detail of a longitudinal section of the pipe at the clad plate, with electrolytic etch, that sligthly reveals the granular structure of the plate, mainly due to the presence if precipitates.
38
VIEW
ML00133 / May.2018
Seam Welded Pipe Cladded with Alloy 625
M - LAS / Ni AlloyP - Longitudinal Seam Welded PipeAp - Oil and GasCd - Welding
Cm - Chromic Acid Electrolytic EtchedDf - Austenite
ML00132 — Seamless Pipe Overlaid with Alloy 625M - LAS / Ni AlloyP - Seamless PipeAp - Oil and GasCd - Welding
Micrography of a longitudinal section of the pipe at the interface between overlay layers, with electrolytic etch that reveals the Ni alloy structure, large grains with celular dendritic morphology.
52
VIEW
ML00132 / May.2018
Seamless Pipe Overlaid with Alloy 625
M - LAS / Ni AlloyP - Seamless PipeAp - Oil and GasCd - Welding
Cm - Chromic Acid Electrolytic EtchedDf - Weld Metal
Micrographic detail of a longitudinal section of the pipe in the overlay weld metal, with electrolytic etch that reveals the Ni alloy structure with celular dendritic morphology and precipitates.
48
VIEW
ML00132 / May.2018
Seamless Pipe Overlaid with Alloy 625
M - LAS / Ni AlloyP - Seamless PipeAp - Oil and GasCd - Welding
Cm - Chromic Acid Electrolytic EtchedDf - Weld Metal