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2 cases · 3 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Standard: UNS Capture method: Transverse Section Aspect clear all

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Macrography of a transverse section of the tube close to the leakage point, evidencing a localized thinning from the internal side of the tube.
65
VIEW
ML00170 / Sep.2020
MIC in Aluminum Brass Tubes
M - Aluminum BrassP - Seamless tubeAp - MaritimeCd - Preferential Dissolution
Cm - Transverse Section AspectDf - Localized Thinning
The macrography of the transverse section shows the columnar grains typical of a centrifugally cast material. The etch is the same as the adopted for the micrographies. The bushing thickness is 1/2".
41
VIEW
ML00044 / Feb.2017
Centrifugally Cast CuAl Bushing
M - Aluminum BronzeP - Cast BushingAp - EngineCd - Removed From Service
Cm - Transverse Section AspectDf - Columnar Grains

More from these cases

ML00170 — MIC in Aluminum Brass TubesM - Aluminum BrassP - Seamless tubeAp - MaritimeCd - Preferential Dissolution
Macrograhy of
5
VIEW
ML00170 / Sep.2020
MIC in Aluminum Brass Tubes
M - Aluminum BrassP - Seamless tubeAp - MaritimeCd - Preferential Dissolution
Cm - Transverse Section AspectDf - Localized Thinning