Optical Microscope

2 cases · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Welding Defect Detail focus: Heat Affected Zone clear all

Optical Microscope — sub-branches

Nital Etched Micrography by OM 2

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Fusion line of the forging side, in the cap, showing the weld metal (to the top of the image) and the base metal (to the bottom of the image). The heat affected zone hardness is about 270HV10.
108
VIEW
ML00178 / Jan.2022
Cold cracks in Cr-Mo Welded Forging
M - CrMo SteelP - ForgingAp - O&G Well DrillingCd - Welding Defect
Cm - Nital Etched Micrography by OMDf - Heat Affected Zone
Micrographic detail of the segregated regions at the previous austenite coarse grains, close to the fusion line.
52
VIEW
ML00069 / May.2017
Liquation Cracks in SAW of Low Carbon Steel
M - Low Carbon SteelP - Fabrication WeldAp - AutomotiveCd - Welding Defect
Cm - Nital Etched Micrography by OMDf - Heat Affected Zone