Cracks

2 cases · 3 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Capture method: Replication Technique clear all

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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
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ML00155 / Jan.2020
Failure of a Prestressed Concrete Steel Strand
M - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
Cm - As polishedDf - Cracks
The morphology of the cracking in the weld metal is intergranular (in the previous austenite grain boundaries), and branched. The replication technique was adopted to define the nature of the cracks.
148
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ML00071 / Jan.2019
Reheating Cracking of a CrMo Vessel Weld
M - CrMo SteelP - In Field WeldAp - EnergyCd - Welding Defect
Cm - Nital etched, OMDf - Cracks

More from these cases

ML00071 — Reheating Cracking of a CrMo Vessel WeldM - CrMo SteelP - In Field WeldAp - EnergyCd - Welding Defect
Detail of the weld metal intergranular and branched cracking (in the previous austenite grain boundaries). The replication technique was adopted to define the nature of the cracks.
125
VIEW
ML00071 / Jan.2019
Reheating Cracking of a CrMo Vessel Weld
M - CrMo SteelP - In Field WeldAp - EnergyCd - Welding Defect
Cm - Nital etched, OMDf - Cracks