Optical Microscope

2 cases · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Product: Forging Microstructure: Tempered Martensite Detail focus: Fusion Line clear all

Optical Microscope — sub-branches

Kalling Etched Micrography by OM 1Nital Etched Micrography by OM 1

Results

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Micrographic detail of the cracks at the fusion line of the welded joint, at the connector side. The cracking presents morphology of melting regions of impurities at grain boundaries of the large grains of the heat affected zone (HAZ).
57
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ML00072 / Jan.2018
Liquation Cracks in a High Strength Joint
M - Low Alloy Medium Carbon QTP - Longitudinal Seam Welded PipeAp - O&G Well DrillingCd - Welding Defect
Cm - Nital Etched Micrography by OMDf - Fusion Line
Micrography of the weld metal close to the fusion line showing the previous austenite columnar grain boundaries.
25
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ML00045 / Aug.2017
Subsea Tubular F6NM Martensitic SS
M - Martensitic Stainless SteelP - Fabrication WeldAp - OffshoreCd - Welding
Cm - Kalling Etched Micrography by OMDf - Fusion Line