Optical Microscope

1 case · 1 image

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Heat Treatment Defect Microstructure: Ferritic pearlitic Detail focus: Transverse Section clear all

Optical Microscope — sub-branches

As polished micrography 1

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Micrography, as polished, of the transverse section of the forged pin with the layer applied by a (thermal) spray and fuse process. The layer presented entrapped pores and globular oxides. It was melted after application by thermal spray (in this case using a flame) but the pin was not heat treated after the full application and melting of the layer and the base metal is ferritc-pearlitic.
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ML00110 / Jan.2018
Non Conformance in Spray and Fuse Pin
M - Low Alloy Medium Carbon QTP - Tubular ForgingAp - O&G Well DrillingCd - Heat Treatment Defect
Cm - As polished micrographyDf - Transverse Section