Micrography by OM

3 cases · 24 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Product: Rolled Plate clear all

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Micrography of the plate in the middle of the thickness, showing the aligned structure tyical of a rolling process. The sample was mechanically-electrolitically polished and etched with HF (10%) + HNO3 (5%) +H2O (85%) solution.
28
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Micrography by OMDf - Alpha and Beta
Micrography of a crack, in a sample as polished, presenting the opened crack.
144
VIEW
ML00018 / Apr.2017
SCC in Boiler Steam Drum
M - Low Carbon SteelP - Rolled PlateAp - BoilerCd - Stress Corrosion
Cm - Micrography by OMDf - Branched Cracks
The micrography of the transverse section of the plate, as polished, close to the surface. The material presents intergranular corrosion and some grains were lost.
1184
VIEW
ML00015 / Oct.2017
Intergranular Corrosion of 304SS Plate
M - Austenitic Stainless SteelP - Rolled PlateAp - RefineryCd - Intergranular Corrosion
Cm - Micrography by OMDf - Intergranular Corrosion

More from these cases

ML00144 — Impact of a .380 Winchester on Ti64 PlateM - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Micrography showing the alpha plus beta microstructure in the middle of the thickness. The sample was mechanically-electrolitically polished and etched with HF (10%) + HNO3 (5%) +H2O (85%) solution.
32
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Micrography by OMDf - Alpha and Beta
Micrographic detail of the plate, showing the alpha (light grains as a matrix) plus beta (dark phase) microstructure. Etched with HF (10%) + HNO3 (5%) +H2O (85%) solution.
28
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Micrography by OMDf - Alpha and Beta
Micrographic detail of the plate, showing the aligned beta phase (dark) in the alpha grains (light) microstructure. Etched with HF (10%) + HNO3 (5%) +H2O (85%) solution.
24
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Micrography by OMDf - Alpha and Beta
Micrographic detail of the plate, showing the aligned beta (dark phase) in alpha microstructure. Etched with HF+ HNO3+H2O solution.
26
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Micrography by OMDf - Alpha and Beta
Micrography by SEM of the plate in the middle of the thickness, showing the alpha microstructure (dark grains) and the beta phase (light). Etched with HF+HNO3+H2O.
35
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Micrography by OMDf - Alpha and Beta

+12 more from this case →

ML00018 — SCC in Boiler Steam DrumM - Low Carbon SteelP - Rolled PlateAp - BoilerCd - Stress Corrosion
Micrography of a crack, as polished, presenting the cracks filled with corrosion products.
100
VIEW
ML00018 / Apr.2017
SCC in Boiler Steam Drum
M - Low Carbon SteelP - Rolled PlateAp - BoilerCd - Stress Corrosion
Cm - Micrography by OMDf - Branched Cracks
Micrographic detail of a crack, in a sample as polished, presenting regions of opened cracks and filled cracks.
88
VIEW
ML00018 / Apr.2017
SCC in Boiler Steam Drum
M - Low Carbon SteelP - Rolled PlateAp - BoilerCd - Stress Corrosion
Cm - Micrography by OMDf - Branched Cracks
ML00015 — Intergranular Corrosion of 304SS PlateM - Austenitic Stainless SteelP - Rolled PlateAp - RefineryCd - Intergranular Corrosion
Micrographic aspect of a longitudinal section of the plate, close to the surface, in a region where it was detected intergranular corrosion up to 0,5 mm depth. As polished.
188
VIEW
ML00015 / Oct.2017
Intergranular Corrosion of 304SS Plate
M - Austenitic Stainless SteelP - Rolled PlateAp - RefineryCd - Intergranular Corrosion
Cm - Micrography by OMDf - Intergranular Corrosion
Micrographic detail of intergranular corrosion, up to 0,5 mm depth. As polished.
171
VIEW
ML00015 / Oct.2017
Intergranular Corrosion of 304SS Plate
M - Austenitic Stainless SteelP - Rolled PlateAp - RefineryCd - Intergranular Corrosion
Cm - Micrography by OMDf - Intergranular Corrosion