Naked Eye or Stereoscope

2 cases · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Application: Offshore Detail focus: Localized Corrosion clear all

Naked Eye or Stereoscope — sub-branches

Macro Oxalic Acid Electrolytic Etched 1Transverse Section Aspect 1

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Macrosection detail of the valve body at the thread, showing the metal to metal contact between the carbon steel female thread and the stainless steel male thread.
80
VIEW
ML00184 / Apr.2023
Dissimilar Steels in a Threaded Connection
M - Low Carbon SteelP - ForgingAp - OffshoreCd - Localized Dissolution
Cm - Transverse Section AspectDf - Localized Corrosion
The macrography of the longitudinal section of the pin (9.5 mm nominal diameter) shows the localized corrosion associated to the non metallic inclusions.
107
VIEW
ML00016 / Apr.2017
SCC in Free Cutting 303SS
M - Austenitic Stainless SteelP - Machined PartAp - OffshoreCd - Stress Corrosion
Cm - Macro Oxalic Acid Electrolytic EtchedDf - Localized Corrosion