AISI

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Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Intragranular Intergranular Precipitates Capture method: Scanning Electron Microscope clear all

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SAMPLE 1 AT THE FRACTURE - Micrographic detail by scanning electron microscopy, as polished, of the oxides that are penetrating in the grain boundaries. The EDS showed high Molibdenium content in the penetrating oxides. The process uses Mo oxides to make metallic Mo and the high Mo content at the surface could be responsible for reducing the oxidation resistance of the material and intensifying the thinning at the process side (side A).
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ML00160 / Apr.2020
High Temperature Degradation of 310SS
M - Austenitic Stainless SteelP - Rectangular TubeAp - Chemical IndustryCd - Scaling
Cm - Micrography by SEMDf - Oxide Layer