Sampling and Analysis

2 cases · 7 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Product: Machined Part Microstructure: Ferritic Capture method: Optical Microscope clear all

Sampling and Analysis — sub-branches

Longitudinal Section 4Transverse Section 3

Results

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Micrography of the longitudinal section of the fitiing, in a free-cutting steel. The microstructure is predominantly ferritic and there is a large amount of sulfide inclusions, aligned perpendicular to the forming direction.
98
VIEW
ML00103 / Nov.2017
Brittle Fracture of a Free-Cutting Connector
M - Low Carbon SteelP - Machined PartAp - ShipCd - Brittle Fracture
Cm - Nital Etched Micrography by OMDf - Longitudinal Section
Detail of the longitudinal section of the ring, showing a fully ferritic structure.
619
VIEW
ML00057 / Apr.2017
Low Carbon Steel of Segment Ring
M - Low Carbon SteelP - Machined PartAp - AutomotiveCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Longitudinal Section

More from these cases

ML00103 — Brittle Fracture of a Free-Cutting ConnectorM - Low Carbon SteelP - Machined PartAp - ShipCd - Brittle Fracture
Micrography of the transerse section of the fitiing, in a free-cutting steel. The microstructure is predominantly ferritic and the inclusions appear as dots.
97
VIEW
ML00103 / Nov.2017
Brittle Fracture of a Free-Cutting Connector
M - Low Carbon SteelP - Machined PartAp - ShipCd - Brittle Fracture
Cm - Nital Etched Micrography by OMDf - Transverse Section
ML00057 — Low Carbon Steel of Segment RingM - Low Carbon SteelP - Machined PartAp - AutomotiveCd - Removed From Service
Longitudinal section of the ring, showing a fully ferritic structure.
128
VIEW
ML00057 / Apr.2017
Low Carbon Steel of Segment Ring
M - Low Carbon SteelP - Machined PartAp - AutomotiveCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Longitudinal Section
The longitudinal section of the ring reveals a very fine ferritic structure.
115
VIEW
ML00057 / Apr.2017
Low Carbon Steel of Segment Ring
M - Low Carbon SteelP - Machined PartAp - AutomotiveCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Longitudinal Section
Transverse section of the ring presenting a fully ferritic structure, that presents a hardness level a little higher probably due to a cold forming effect.
93
VIEW
ML00057 / Apr.2017
Low Carbon Steel of Segment Ring
M - Low Carbon SteelP - Machined PartAp - AutomotiveCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Transverse Section
Transverse section of the ring presenting a fully ferritic structure, that presents a hardness level a little higher probably due to a cold forming effect.
54
VIEW
ML00057 / Apr.2017
Low Carbon Steel of Segment Ring
M - Low Carbon SteelP - Machined PartAp - AutomotiveCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Transverse Section