Graphite in Flakes

3 cases · 6 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

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Micrography of the longitudinal section of the cylinder, at the internal diameter, in contact with the treated cooling water, presenting large graphite flakes in a predominatly perlitic matrix. It is important to mention that the flakes are almost interconnecting themelves.
47
VIEW
ML00141 / Jul.2018
Brittle Fracture of a Corroded Gray Cast Iron
M - Gray Cast ironP - CastingAp - EngineCd - Brittle Fracture
Cm - Nital Etched Micrography by OMDf - Graphite in Flakes
Micrographic detail of the graphite/matrix interface corrosion, leading to a general corrosion loss.
189
VIEW
ML00034 / Apr.2017
45 Years Old Acquaduct Grey Cast Iron
M - Gray Cast ironP - Centrifugally Cast PipeAp - AcquaductCd - General Corrosion
Cm - Nital Etched Micrography by OMDf - Graphite in Flakes
Grey cast iron structure. As polished.
109
VIEW
ML00032 / Jan.2017
Cast Iron Case of Drilling Equipment
M - Gray Cast ironP - CastAp - O&G Well DrillingCd - Typical manufacturing
Cm - Micrography by OMDf - Graphite in Flakes

More from these cases

ML00141 — Brittle Fracture of a Corroded Gray Cast IronM - Gray Cast ironP - CastingAp - EngineCd - Brittle Fracture
Micrography of the longitudinal section of the cylinder, in the center of the thickness, presenting large graphite flakes in a predominatly perlitic matrix. There are also ferritic regions.
33
VIEW
ML00141 / Jul.2018
Brittle Fracture of a Corroded Gray Cast Iron
M - Gray Cast ironP - CastingAp - EngineCd - Brittle Fracture
Cm - Nital Etched Micrography by OMDf - Graphite in Flakes
Micrography of the longitudinal section of the cylinder, at the external diameter (right side of the figure), presenting smaller interdendritic graphite flakes in a ferritic-perlitic matrix. This surface is painted.
32
VIEW
ML00141 / Jul.2018
Brittle Fracture of a Corroded Gray Cast Iron
M - Gray Cast ironP - CastingAp - EngineCd - Brittle Fracture
Cm - Nital Etched Micrography by SEMDf - Graphite in Flakes
ML00032 — Cast Iron Case of Drilling EquipmentM - Gray Cast ironP - CastAp - O&G Well DrillingCd - Typical manufacturing
Grey cast iron with graphite in flakes.
97
VIEW
ML00032 / Jan.2017
Cast Iron Case of Drilling Equipment
M - Gray Cast ironP - CastAp - O&G Well DrillingCd - Typical manufacturing
Cm - Micrography by OMDf - Graphite in Flakes