At the Surface

1 case · 14 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Non-Pierced clear all

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Detail of the opposite side of the plate. No evidence of damage, only small adhesion of the red painting (bottom right part of the figure).
31
VIEW
ML00142 / Aug.2018
Impact of a .308 Winchester on AR500 Plate
M - Low Alloy Wear ResistantP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Aspect Before AnalysisDf - At the Surface

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ML00142 — Impact of a .308 Winchester on AR500 PlateM - Low Alloy Wear ResistantP - Rolled PlateAp - StructureCd - Non-Pierced
Microscopically aspect of the plate surface in the center of the bullet impact. The light and smooth surface is the melted bullet on the plate and the dark surface is the steel plate with oxides and very small surface cracks (10 microns length).
30
VIEW
ML00142 / Aug.2018
Impact of a .308 Winchester on AR500 Plate
M - Low Alloy Wear ResistantP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Surface Aspect by SEMDf - At the Surface
Detailed aspect of the plate surface where there was the bullet impact, by scanning electron microscopy, showing that the bullet has melted and solidified on the surface. The EDS analysis showed Pb-Sb peaks.
32
VIEW
ML00142 / Aug.2018
Impact of a .308 Winchester on AR500 Plate
M - Low Alloy Wear ResistantP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Surface Aspect by SEMDf - At the Surface
Aspect of the plate surface a little far from the region of bullet impact, by scanning electron microscopy, showing bullet melted islands on the surface. The EDS analysis showed Pb-Sb peaks.
25
VIEW
ML00142 / Aug.2018
Impact of a .308 Winchester on AR500 Plate
M - Low Alloy Wear ResistantP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Surface Aspect by SEMDf - At the Surface
Detailed aspect of the plate surface a little far from the region of bullet impact, by scanning electron microscopy, showing bullet melted islands on the surface. The EDS analysis showed Pb-Sb peaks.
24
VIEW
ML00142 / Aug.2018
Impact of a .308 Winchester on AR500 Plate
M - Low Alloy Wear ResistantP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Surface Aspect by SEMDf - At the Surface
Micrography of the plate section, as polished, close to the surface that suffered the impact. No evidences of damage.
26
VIEW
ML00142 / Aug.2018
Impact of a .308 Winchester on AR500 Plate
M - Low Alloy Wear ResistantP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - As polished micrographyDf - At the Surface

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