Optical Microscope

3 cases · 31 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Ferritic pearlitic matrix clear all

Optical Microscope — sub-branches

As polished micrography 3Nital Etched Micrography by OM 28

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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 CAP A, showing graphite in imperfect nodules and ferritic matrix.
481
VIEW
ML00047 / Mar.2017
Ductile Cast Iron Caps of Electrical Insulators
M - Ductile Cast IronP - Cast iron capAp - EnergyCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Graphite in Imperfect Nodules
Polished cross-section showing rounded graphite nodules within a ferritic matrix, bordered by an irregular oxidized region at the surface edge.
909
VIEW
ML00001 / Dec.2017
Thermal Fatigue of Cast Iron
M - Nodular Cast IronP - CastAp - SiderurgyCd - Thermal Fatigue
Cm - Nital Etched Micrography by OMDf - Oxide Layer

More from these cases

ML00154 — High Strength Cast Iron CrankshaftM - Nodular Cast IronP - CastingAp - EngineCd - Surface treatment
As polished micrography of the crankshaft at the shaft edge, close to the surface. Graphite in nodules.
126
VIEW
ML00154 / Jan.2019
High Strength Cast Iron Crankshaft
M - Nodular Cast IronP - CastingAp - EngineCd - Surface treatment
Cm - As polished micrographyDf - Graphite in Nodules
As polished micrographic detail of the graphite in nodules, close to the surface of the shaft edge, in a longitudinal section.
114
VIEW
ML00154 / Jan.2019
High Strength Cast Iron Crankshaft
M - Nodular Cast IronP - CastingAp - EngineCd - Surface treatment
Cm - As polished micrographyDf - Graphite in Nodules
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.
95
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 crankshaft close to the radio that is not heat treated. Graphite in nodules and a ferritic and pearlitic matrix, predominantly pearlitic.
81
VIEW
ML00154 / Jan.2019
High Strength Cast Iron Crankshaft
M - Nodular Cast IronP - CastingAp - EngineCd - Surface treatment
Cm - Nital Etched Micrography by OMDf - Matrix of ferrite and pearlite
Micrographic detail of the graphite nodules and a ferritic and pearlitic matrix, predominantly pearlitic.
82
VIEW
ML00154 / Jan.2019
High Strength Cast Iron Crankshaft
M - Nodular Cast IronP - CastingAp - EngineCd - Surface treatment
Cm - Nital Etched Micrography by OMDf - Matrix of ferrite and pearlite

+12 more from this case →

ML00047 — Ductile Cast Iron Caps of Electrical InsulatorsM - Ductile Cast IronP - Cast iron capAp - EnergyCd - Typical manufacturing
Detail of CAP A microstructure. Graphite in imperfect nodules and ferritic matrix. Grey sulphide inclusions.
88
VIEW
ML00047 / Mar.2017
Ductile Cast Iron Caps of Electrical Insulators
M - Ductile Cast IronP - Cast iron capAp - EnergyCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Predominantly Ferritic
Micrography of CAP B, showing graphite in nodules and ferritic matrix.
67
VIEW
ML00047 / Mar.2017
Ductile Cast Iron Caps of Electrical Insulators
M - Ductile Cast IronP - Cast iron capAp - EnergyCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Graphite in Nodules
Detail of CAP B microstructure. Graphite in nodules and ferritic matrix. Small sulphide inclusions (grey).
60
VIEW
ML00047 / Mar.2017
Ductile Cast Iron Caps of Electrical Insulators
M - Ductile Cast IronP - Cast iron capAp - EnergyCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Predominantly Ferritic
Micrography of CAP C, showing graphite in nodules and ferritic-perlitic matrix.
52
VIEW
ML00047 / Mar.2017
Ductile Cast Iron Caps of Electrical Insulators
M - Ductile Cast IronP - Cast iron capAp - EnergyCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Graphite in Nodules
Detail of CAP C microstructure. Graphite in nodules and ferritic-perlitic matrix.
56
VIEW
ML00047 / Mar.2017
Ductile Cast Iron Caps of Electrical Insulators
M - Ductile Cast IronP - Cast iron capAp - EnergyCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Predominantly Ferritic
ML00001 — Thermal Fatigue of Cast IronM - Nodular Cast IronP - CastAp - SiderurgyCd - Thermal Fatigue
The 1" flat casting product presents a ferritic perlitic matrix and graphite nodules.
112
VIEW
ML00001 / Dec.2017
Thermal Fatigue of Cast Iron
M - Nodular Cast IronP - CastAp - SiderurgyCd - Thermal Fatigue
Cm - Nital Etched Micrography by OMDf - Graphite in Nodules
Center of the flat casting product, presenting nodular graphite and ferritic perlitic matrix.
113
VIEW
ML00001 / Dec.2017
Thermal Fatigue of Cast Iron
M - Nodular Cast IronP - CastAp - SiderurgyCd - Thermal Fatigue
Cm - Nital Etched Micrography by OMDf - Predominantly Ferritic Matrix
Nodular cast iron presenting a ferritic perlitic matrix.
109
VIEW
ML00001 / Dec.2017
Thermal Fatigue of Cast Iron
M - Nodular Cast IronP - CastAp - SiderurgyCd - Thermal Fatigue
Cm - Nital Etched Micrography by OMDf - Matrix of ferrite and pearlite
Nodular cast iron. Ferritic perlitic matrix. White regions in the pearlite colonies are free carbides.
129
VIEW
ML00001 / Dec.2017
Thermal Fatigue of Cast Iron
M - Nodular Cast IronP - CastAp - SiderurgyCd - Thermal Fatigue
Cm - Nital Etched Micrography by OMDf - Free Carbides in Pearlite Colonies
The graphite nodules remain at the surface and the matrix was consumed during high temperature exposition.
117
VIEW
ML00001 / Dec.2017
Thermal Fatigue of Cast Iron
M - Nodular Cast IronP - CastAp - SiderurgyCd - Thermal Fatigue
Cm - Nital Etched Micrography by OMDf - Oxide Layer

+1 more from this case →