Close to the Internal Surface

1 case · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Tempered Martensite clear all

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Micrography of a longitudinal section of the pipe, at the internal pipe surface, where the coating was detached. The strain hardening effect of the blasting is evident. The microstructure is tempered martensite and the surface is slightly decarburized.
28
VIEW
ML00169 / Nov.2020
Drill Pipe Fracture in the Pipe Body
M - Low Alloy Medium Carbon QTP - Drill PipeAp - O&G Well DrillingCd - Corrosion Fatigue
Cm - Nital Etched Micrography by OMDf - Close to the Internal Surface

More from these cases

ML00169 — Drill Pipe Fracture in the Pipe BodyM - Low Alloy Medium Carbon QTP - Drill PipeAp - O&G Well DrillingCd - Corrosion Fatigue
Micrography of a longitudinal section of the pipe, at the internal pipe surface, where the coating was detached. The strain hardening effect of the blasting is evident. The microstructure is tempered martensite and the surface is slightly decarburized.
26
VIEW
ML00169 / Nov.2020
Drill Pipe Fracture in the Pipe Body
M - Low Alloy Medium Carbon QTP - Drill PipeAp - O&G Well DrillingCd - Corrosion Fatigue
Cm - Nital Etched Micrography by OMDf - Close to the Internal Surface