Micrography by OM using A262 Method A

2 cases · 6 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Detail focus: Localized Corrosion clear all

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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
The low magnification micrography of the longitudinal section of the pin shows the localized corrosion associated to the non metallic inclusions.
89
VIEW
ML00016 / Apr.2017
SCC in Free Cutting 303SS
M - Austenitic Stainless SteelP - Machined PartAp - OffshoreCd - Stress Corrosion
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
ML00016 — SCC in Free Cutting 303SSM - Austenitic Stainless SteelP - Machined PartAp - OffshoreCd - Stress Corrosion
The micrographic detail of the longitudinal section of the pin shows the localized corrosion associated to the non metallic inclusions.
67
VIEW
ML00016 / Apr.2017
SCC in Free Cutting 303SS
M - Austenitic Stainless SteelP - Machined PartAp - OffshoreCd - Stress Corrosion
Cm - Micrography by OM using A262 Method ADf - Localized Corrosion