178

1 case · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Capture method: Optical Microscope Detail focus: Ferrite and Pearlite clear all

178 — sub-branches

grade C 1

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Micrography of a longitudinal section of the tube, 200 mm far from the cracked region, in the center of the thickness (3.9 mm) showing a granular ferritic-perlitic structure.
139
VIEW
ML00104 / Dec.2017
Thermal Fatigue of a Boiler Tube
M - Low Carbon SteelP - Autogenously Welded TubeAp - BoilerCd - Thermal Fatigue
Cm - Nital Etched Micrography by OMDf - Ferrite and Pearlite

More from these cases

ML00104 — Thermal Fatigue of a Boiler TubeM - Low Carbon SteelP - Autogenously Welded TubeAp - BoilerCd - Thermal Fatigue
Micrographic detail of a longitudinal section of the tube, 200 mm far from the cracked region, in the center of the thickness (3.9 mm). Feritic perlitic structure.
113
VIEW
ML00104 / Dec.2017
Thermal Fatigue of a Boiler Tube
M - Low Carbon SteelP - Autogenously Welded TubeAp - BoilerCd - Thermal Fatigue
Cm - Nital Etched Micrography by OMDf - Ferrite and Pearlite
Micrography of the longitudinal section of the tube, close to OD, showing no damage in a section about 200mm far from the cracked region.
92
VIEW
ML00104 / Dec.2017
Thermal Fatigue of a Boiler Tube
M - Low Carbon SteelP - Autogenously Welded TubeAp - BoilerCd - Thermal Fatigue
Cm - Nital Etched Micrography by OMDf - Ferrite and Pearlite
Micrography of the longitudinal section of the tube, close to ID, showing no damage in a section about 200mm far from the cracked region.
69
VIEW
ML00104 / Dec.2017
Thermal Fatigue of a Boiler Tube
M - Low Carbon SteelP - Autogenously Welded TubeAp - BoilerCd - Thermal Fatigue
Cm - Nital Etched Micrography by OMDf - Ferrite and Pearlite