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2 cases · 12 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Application: Transportation Capture method: Optical Microscope clear all

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Micrography of the wheel in the center of the thickness. The material presents a coarse structure.
88
VIEW
ML00158 / Feb.2020
Surface Hardened Carbon Steel Wheel
M - High Carbon SteelP - WheelAp - TransportationCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - In the Center of the Thickness
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

More from these cases

ML00158 — Surface Hardened Carbon Steel WheelM - High Carbon SteelP - WheelAp - TransportationCd - Removed From Service
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 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
Micrography of the wheel at the surface that was quenched and tempered. The material presents a tempered martensitic structure, with hardness that varied from 327HB to 363HB.
55
VIEW
ML00158 / Feb.2020
Surface Hardened Carbon Steel Wheel
M - High Carbon SteelP - WheelAp - TransportationCd - Removed From Service
Cm - Nital Etched Micrography by OMDf - At the Surface
Micrography of the wheel at the hardened surface, presenting a refined martensitic structure, tempered for average hardness of 346 HB.
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 - At the Surface
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

+3 more from this case →

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
Micrography of a transverse section of the rail, in the head, showing equiaxial grains. Perlitic microstructure.
54
VIEW
ML00096 / Oct.2017
Carbon Steel Tee Rail
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Transverse Section