Damage

1 case · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Application: Subsea Microstructure: Dendritic Capture method: Optical Microscope clear all

Damage — sub-branches

Localized Corrosion 4

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Micrographic detail of the crevice corrosion in the case wall, showing that the structure is not affected and is fully austenitic with equiaxial grains typical of a solution annealed condition.
85
VIEW
ML00122 / Feb.2018
Crevice Corrosion in a Subsea System
M - Austenitic Stainless SteelP - CaseAp - Oil and GasCd - Crevice
Cm - Micrography by OM using A262 Method ADf - Localized Corrosion

More from these cases

ML00122 — Crevice Corrosion in a Subsea SystemM - Austenitic Stainless SteelP - CaseAp - Oil and GasCd - Crevice
Micrographic detail of the crevice corrosion in the case wall, showing that the structure is not affected and is fully austenitic with equiaxial grains typical of a solution annealed condition.
72
VIEW
ML00122 / Feb.2018
Crevice Corrosion in a Subsea System
M - Austenitic Stainless SteelP - CaseAp - Oil and GasCd - Crevice
Cm - Micrography by OM using A262 Method ADf - Localized Corrosion
Micrographic detail of the crevice corrosion in the case wall, showing that the structure is not affected and is fully austenitic with equiaxial grains typical of a solution annealed condition. Even non metallic inclusions did not accelerate corrosion since the extension of the inclusions was not too long and they were not connecting to others.
76
VIEW
ML00122 / Feb.2018
Crevice Corrosion in a Subsea System
M - Austenitic Stainless SteelP - CaseAp - Oil and GasCd - Crevice
Cm - Micrography by OM using A262 Method ADf - Localized Corrosion
Micrographic detail of the crevice corrosion in the case wall, showing that the structure is not affected and is fully austenitic with equiaxial grains typical of a solution annealed condition. Even non metallic inclusions did not accelerate corrosion since the extension of the inclusions was not too long and they were not connecting to others.
81
VIEW
ML00122 / Feb.2018
Crevice Corrosion in a Subsea System
M - Austenitic Stainless SteelP - CaseAp - Oil and GasCd - Crevice
Cm - Micrography by OM using A262 Method ADf - Localized Corrosion