Scanning Electron Microscope

2 cases · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Product: Finished Product Application: Ship Detail focus: Sampling and Analysis clear all

Scanning Electron Microscope — sub-branches

Fractography by SEM 1Surface Aspect by SEM 1

Results

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Aspect of the fractured tooth in a region presenting pitting, opening voids, and cracks.
52
VIEW
ML00181 / Apr.2022
Wear of a Carburized Hypoid Gear
M - Low Alloy for Thermochemical TreatmentP - Pinion-crown assemblyAp - ShipCd - Wear
Cm - Surface Aspect by SEMDf - At the Surface
The scanning electron microscopy image presents the surface of the spring (top of the figure) where it was broken (the fracture is in the bottom of the figure). It is possible to see that there is a product at the surface and the material presents intergranular fracture, suggesting there was a hydrogen embrittlement effect. Important to observe that the material does not present pits.
58
VIEW
ML00137 / Mar.2021
Brittle Fracture of a 15-5 PH Valve Spring
M - Precipitation Hardened Stainless SteelP - SpringAp - Oil and GasCd - Brittle Behavior
Cm - Fractography by SEMDf - At the Surface