Optical Microscope

2 cases · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Standard: DIN Detail focus: Longitudinal Section clear all

Optical Microscope — sub-branches

Micrography by OM 1Nital Etched Micrography by OM 1

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As polished micrographic aspect of the longitudinal section of the cylinder, at the surface, in a region where the damage is in the begining. It is possible to see that there are two layers at the surface. A first Ni layer, 300HV average hardness, over the low carbon steel substrate, 200HV average hardness, and a chromium plated layer, 1100HV average hardness and several discontinuities.
62
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ML00128 / Apr.2018
MIC of a Stored Hydraulic Cylinder
M - Low Carbon SteelP - Chromium PlatedAp - OffshoreCd - Localized Dissolution
Cm - Micrography by OMDf - Longitudinal Section
Shaft microstructure in the longitudinal section, showing aligned segregations typical of the material forming.
31
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ML00108 / Dec.2017
Thermal Spray Layer in a Pinion Shaft
M - High Strength Low AlloyP - ShaftAp - EngineCd - Coating Defect
Cm - Nital Etched Micrography by OMDf - Longitudinal Section