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3 cases · 12 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Standard: UNS Capture method: Replication Technique clear all

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Etched micrograph showing a transgranular crack running across equiaxed ferrite grains with dark grain-boundary carbides.
24
VIEW
ML00171 / Feb.2021
Corrosion Fatigue of U Bolt Pipe Clamp
M - Low Carbon SteelP - BoltAp - ShipCd - Corrosion Fatigue
Cm - As polishedDf - Acicular Alpha
Back of the coaster showing the region that was prepared for the non destructive analysis. It was ground and polished (the coating was removed), showing the yellow aspect of the substrate, in the left bottom part of the image.
64
VIEW
ML00156 / Jan.2020
Antique Silver Plated Decorative Piece
M - BrassP - Decorative PieceAp - OrnamentalCd - Non Destructive Examination
Cm - As polishedDf - General View
Micrography of a typical corroded wire, in a longitudinal section as polished, showing loss of thickness by corrosion. The loss of material is accelerated by the corrosion in "layers" associated to the strained microstructure.
43
VIEW
ML00155 / Jan.2020
Failure of a Prestressed Concrete Steel Strand
M - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
Cm - As polishedDf - Corrosion

More from these cases

ML00155 — Failure of a Prestressed Concrete Steel StrandM - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
Micrography of a typical as polished corrosion-fatigue mechanism, in a longitudinal section. The loss of material is accelerated a lot by the cracks through the thickness.
43
VIEW
ML00155 / Jan.2020
Failure of a Prestressed Concrete Steel Strand
M - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
Cm - As polishedDf - Cracks
Test
3
VIEW
ML00155 / Jan.2020
Failure of a Prestressed Concrete Steel Strand
M - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
Cm - As polishedDf - Acicular Alpha
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4
VIEW
ML00155 / Jan.2020
Failure of a Prestressed Concrete Steel Strand
M - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
Cm - As polishedDf - Aligned particles
fasdf asfa sd
5
VIEW
ML00155 / Jan.2020
Failure of a Prestressed Concrete Steel Strand
M - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
Cm - Nital etched, OMDf - Austenite
fad asdf a
3
VIEW
ML00155 / Jan.2020
Failure of a Prestressed Concrete Steel Strand
M - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
Cm - Kalling etched, OMDf - Aligned particles

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