Granular structure

1 case · 1 image

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Fabrication Defect Microstructure: Ferritic Bainitic Capture method: Optical Microscope clear all

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BASE METAL SURFACE - The micrography (transverse to the tube) presents the ferritic/pearlitic/bainitic structure.
75
VIEW
ML00177 / Dec.2021
Cr-Mo Seam Welded Tube
M - CrMo SteelP - Longitudinally Seam WeldedAp - Fired HeaterCd - Not according to spec
Cm - Nital Etched Micrography by OMDf - Granular structure