Raw Material

2 cases · 7 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Austenite Detail focus: Weld Metal clear all

Raw Material — sub-branches

Bar 1Casting 1Cold Formed 1Forging 1Heat Treated Part 1Machined Part 2Pipe 8Rolled Bar 1Rolled Plate 1Tube 2Tubular Forging 1Wrought Fitting 2

Results

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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.
66
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 the weld metal showing a dendritic microstructure. Chromic acid, electrolytic etched.
26
VIEW
ML00066 / May.2017
GMAW Welded Joint in 9%Ni Alloy Steel
M - Nickel Alloy SteelP - Welded Testpiece for QualificationAp - PipelineCd - Welding
Cm - Eletrolytically Etched Micrography by OMDf - Weld Metal in the Center

More from these cases

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.
49
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
ML00066 — GMAW Welded Joint in 9%Ni Alloy SteelM - Nickel Alloy SteelP - Welded Testpiece for QualificationAp - PipelineCd - Welding
Micrography of the weld metal close to the center. Celular and colunar dendritic structures are visible with a lower magnification. Chromic acid, electrolytic etched.
24
VIEW
ML00066 / May.2017
GMAW Welded Joint in 9%Ni Alloy Steel
M - Nickel Alloy SteelP - Welded Testpiece for QualificationAp - PipelineCd - Welding
Cm - Eletrolytically Etched Micrography by OMDf - Weld Metal in the Center
Micrography of the weld metal in the cap pass. Chromic acid, electrolytic etched.
25
VIEW
ML00066 / May.2017
GMAW Welded Joint in 9%Ni Alloy Steel
M - Nickel Alloy SteelP - Welded Testpiece for QualificationAp - PipelineCd - Welding
Cm - Eletrolytically Etched Micrography by OMDf - Weld Metal in the Cap
Micrographic detail of the weld metal in the cap pass, presenting a columnar dendritic microstructure. Chromic acid, electrolytic etched.
29
VIEW
ML00066 / May.2017
GMAW Welded Joint in 9%Ni Alloy Steel
M - Nickel Alloy SteelP - Welded Testpiece for QualificationAp - PipelineCd - Welding
Cm - Eletrolytically Etched Micrography by OMDf - Weld Metal in the Cap