Ferrite

2 cases · 5 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

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Micrographic detail of the ferritic grains with elongated morphology in the center of the transverse section, curved.
58
VIEW
ML00151 / Dec.2018
Ferritic Stainless Steel of a Flatware Fork
M - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
Cm - Micro by OM, HCl + Ethanol + Picric AcidDf - Ferrite
Micrographic detail of the roller bearing microstructure, close to the internal surface, presenting 21 HRc that reveals that the matrix is not martensitic. It is ferritic with large aligned carbides (cracked).
72
VIEW
ML00131 / Apr.2018
Brittle Failure of a Soft Roller Bearing
M - Wear Resistant SteelP - Roller BearingAp - Mechanical IndustryCd - Heat Treatment Defect
Cm - Nital Etched Micrography by OMDf - Ferrite

More from these cases

ML00151 — Ferritic Stainless Steel of a Flatware ForkM - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
Micrographic detail of the fork longitudinal section, in the center of the thickness, at the scoop position, showing ferritic grains equiaxial and uniform.
46
VIEW
ML00151 / Dec.2018
Ferritic Stainless Steel of a Flatware Fork
M - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
Cm - Micro by OM, HCl + Ethanol + Picric AcidDf - Ferrite
Micrographic detail of thefork handle longitudinal section, showing large ferritic grains.
40
VIEW
ML00151 / Dec.2018
Ferritic Stainless Steel of a Flatware Fork
M - Ferritic Stainless SteelP - Foodstuff ArticleAp - KitchenCd - Typical manufacturing
Cm - Micro by OM, HCl + Ethanol + Picric AcidDf - Ferrite
ML00131 — Brittle Failure of a Soft Roller BearingM - Wear Resistant SteelP - Roller BearingAp - Mechanical IndustryCd - Heat Treatment Defect
Ferritic structure close to the internal diameter of the cylindrical roller bearing, in the circuferemtial direction, presenting large carbides (not aligned due to the direction of the section) and small round carbides. in this region the fracture presented ductile micromechanisms (dimples) as well as decohesion of large carbides and cleavage facets, typical of overloading of this low toughness material.
52
VIEW
ML00131 / Apr.2018
Brittle Failure of a Soft Roller Bearing
M - Wear Resistant SteelP - Roller BearingAp - Mechanical IndustryCd - Heat Treatment Defect
Cm - Nital Etched Micrography by OMDf - Ferrite