Microstructure

3 cases · 9 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Application: Transportation clear all

Microstructure — sub-branches

Coarse Structure 1Martensite 1Pearlite 7

Results

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Micrography of the wheel in the center of the thickness, presenting a predominantly pearlitic structure and average hardness abot 196HB.
74
VIEW
ML00158 / Feb.2020
Surface Hardened Carbon Steel Wheel
M - High Carbon SteelP - WheelAp - TransportationCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Coarse Structure
Micrographic detail of a transverse section of the rail, in the head, showing a fully perlitic structure.
520
VIEW
ML00096 / Oct.2017
Carbon Steel Tee Rail
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Pearlite
Micrographic detail of the transverse section of the rail, in the head, showing a fully perlitic structure.
374
VIEW
ML00091 / Sep.2017
Flat Bottom Rail TR57
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Pearlite

More from these cases

ML00158 — Surface Hardened Carbon Steel WheelM - High Carbon SteelP - WheelAp - TransportationCd - Removed From Service
Micrographic detail of the coarse pearlitic structure in the center of the wheel thickness. The part presents a wrought structure.
73
VIEW
ML00158 / Feb.2020
Surface Hardened Carbon Steel Wheel
M - High Carbon SteelP - WheelAp - TransportationCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Pearlite
Micrographic detail of the tempered martensitic structure.
50
VIEW
ML00158 / Feb.2020
Surface Hardened Carbon Steel Wheel
M - High Carbon SteelP - WheelAp - TransportationCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Martensite
Micrographic aspect of the pearlitic structure at the surface not heat treated, showing a lower grain size than in the center of the thickness.
35
VIEW
ML00158 / Feb.2020
Surface Hardened Carbon Steel Wheel
M - High Carbon SteelP - WheelAp - TransportationCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Pearlite
Micrographic detail of the pearlitic microstructure in a region where the structure is not so coarse than in the center of the thickness.
30
VIEW
ML00158 / Feb.2020
Surface Hardened Carbon Steel Wheel
M - High Carbon SteelP - WheelAp - TransportationCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - Pearlite
ML00096 — Carbon Steel Tee RailM - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Micrographic detail of a transverse section of the rail, in the head, showing a fully perlitic structure.
57
VIEW
ML00096 / Oct.2017
Carbon Steel Tee Rail
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Perlite
ML00091 — Flat Bottom Rail TR57M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Micrographic detail of the transverse section of the rail, in the head, showing a fully perlitic structure.
42
VIEW
ML00091 / Sep.2017
Flat Bottom Rail TR57
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Perlite