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Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Hydrogen Embrittlement Capture method: Scanning Electron Microscope Detail focus: Sampling and Analysis clear all

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Scanning electron fractography showing that the fracture micromechanism is intergranular close to the surface of the pin, suggesting a hydrogen embrittlement effect at the carburized layer. The cracks were created during the electrolytic plating, and propagated later during service.
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ML00081 / Aug.2017
Hydrogen Cracking of a Chromium Plated Carburized Pin
M - Low Alloy for Thermochemical TreatmentP - Chromium PlatedAp - AutomotiveCd - Hydrogen Embrittlement
Cm - Fractography by SEMDf - At the Surface