Atlas

2 cases · 6 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Sound Capture method: Optical Microscope Detail focus: At the Surface clear all

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Micrography of a crankshaft longitudinal section at the shaft edge, in the as polished condition, presenting nodular graphite, well distruibuted.
139
VIEW
ML00154 / Jan.2019
High Strength Cast Iron Crankshaft
M - Nodular Cast IronP - CastingAp - EngineCd - Surface treatment
Cm - As polished micrographyDf - At the Surface
Micrography of a longitudinal section of the core wire, 2.0 mm diameter, at the surface of the wire, showing that the wire presents no protective layer (not galvanized nor plated) and the microstructure is strain hardened, aligned.
71
VIEW
ML00117 / Jan.2018
High Carbon Steel Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - At the Surface

More from these cases

ML00154 — High Strength Cast Iron CrankshaftM - Nodular Cast IronP - CastingAp - EngineCd - Surface treatment
Micrography of the crankshaft at the surface, in the radio that is not heat treated. The microstructure is nodules of graphite in a ferritic and pearlitic matrix, predominantly pearlitic.
96
VIEW
ML00154 / Jan.2019
High Strength Cast Iron Crankshaft
M - Nodular Cast IronP - CastingAp - EngineCd - Surface treatment
Cm - Nital Etched Micrography by OMDf - At the Surface
Micrography of the shaft at the surface, in a heat treated position. Graphite in nodules. Dark blue martensitic microstructure around the nodules and white islands of martensitic with retained austenite microstructure (not clearly identified at this low magnification).
68
VIEW
ML00154 / Jan.2019
High Strength Cast Iron Crankshaft
M - Nodular Cast IronP - CastingAp - EngineCd - Surface treatment
Cm - Nital Etched Micrography by OMDf - At the Surface
ML00117 — High Carbon Steel Wire RopeM - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Micrography of a longitudinal section of the strand internal layer, wire of 2.6 mm diameter, at the surface, showing that the wire presents no protective layer (not galvanized nor plated) and the microstructure is strain hardened, aligned.
31
VIEW
ML00117 / Jan.2018
High Carbon Steel Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - At the Surface
Micrography of a longitudinal section of the strand external layer, wire 3.8 mm diameter, at the surface, showing that the wire presents no protective layer (not galvanized nor plated) and the microstructure is strain hardened, aligned.
20
VIEW
ML00117 / Jan.2018
High Carbon Steel Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - At the Surface