Sampling and Analysis

3 cases · 3 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Product: Machined Part Condition: Damage Capture method: Aspect Before Analysis clear all

Sampling and Analysis — sub-branches

At the Surface 1General View 2

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Aspect of the external side of the connector, with a longitudinally crack of a brittle aspect. It is a 5/8" connector (15.8 mm).
134
VIEW
ML00103 / Nov.2017
Brittle Fracture of a Free-Cutting Connector
M - Low Carbon SteelP - Machined PartAp - ShipCd - Brittle Fracture
Cm - Aspect Before AnalysisDf - General View
Aspect of the broken shear pin that was manufactured in a martensitic stainless steel forged bar, machined with the external diameter of 50mm, the internal diameter of 20mm and the shearing diameter of 25mm (shearing thickness 2.5mm). The fracture, in the right side of the figure, is not fully flat as should be expected for a shearing mechanism.
55
VIEW
ML00046 / Jan.2018
Brittle Fracture of SS Shear Pin
M - Martensitic Stainless SteelP - Machined PartAp - EnergyCd - Intergranular Cracking
Cm - Aspect Before AnalysisDf - General View
Visual aspect of the 3/8" diameter pin surface, presenting several lozalized corrosion spots.
53
VIEW
ML00016 / Apr.2017
SCC in Free Cutting 303SS
M - Austenitic Stainless SteelP - Machined PartAp - OffshoreCd - Stress Corrosion
Cm - Aspect Before AnalysisDf - At the Surface