Ferrous Alloys

2 cases · 11 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Application: Structure Capture method: Surface Aspect by SEM clear all

Ferrous Alloys — sub-branches

Carbon Steel 4Low Alloy Steel 7

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Detail of the margin of the perforated hole in the impact position. It is interesting to observe extreme plastic deformation created by the perforation expulsing the material from the hole, in the direction of the impact.
42
VIEW
ML00143 / Aug.2018
Impact of a .308 Winchester on A36 Plate
M - Low Carbon SteelP - Rolled PlateAp - StructureCd - Pierced
Cm - Surface Aspect by SEMDf - Plastic Deformation
Microscopically aspect of the plate surface at the bullet impact, by scanning electron microscopy, presenting the foreign material from the bullet adhered at the surface.
34
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 - Low Mag

More from these cases

ML00143 — Impact of a .308 Winchester on A36 PlateM - Low Carbon SteelP - Rolled PlateAp - StructureCd - Pierced
Detail of the margin of the perforated hole in the side where the projectil stroke the plate. The smooth aspect in the hole (left side of the image) is generated by the melted material from the bullet.
41
VIEW
ML00143 / Aug.2018
Impact of a .308 Winchester on A36 Plate
M - Low Carbon SteelP - Rolled PlateAp - StructureCd - Pierced
Cm - Surface Aspect by SEMDf - At the Surface
Detail of the margin of the perforated hole in the side where the projectil stroke the plate. Ductile dimples of the plate (right side of the figure) and a film of melted Pb-Sb from the bullet.
36
VIEW
ML00143 / Aug.2018
Impact of a .308 Winchester on A36 Plate
M - Low Carbon SteelP - Rolled PlateAp - StructureCd - Pierced
Cm - Surface Aspect by SEMDf - At the Surface
Detail of the melted Pb-Sb film over the hole surface.
33
VIEW
ML00143 / Aug.2018
Impact of a .308 Winchester on A36 Plate
M - Low Carbon SteelP - Rolled PlateAp - StructureCd - Pierced
Cm - Surface Aspect by SEMDf - At the Surface
Detail of the ductile dimples of the plate shearing.
33
VIEW
ML00143 / Aug.2018
Impact of a .308 Winchester on A36 Plate
M - Low Carbon SteelP - Rolled PlateAp - StructureCd - Pierced
Cm - Surface Aspect by SEMDf - Dimples
Detail of the plate surface a little far from the perforated hole, in the side where the projectil stroke the plate. Drops of melted material from the bullet.
36
VIEW
ML00143 / Aug.2018
Impact of a .308 Winchester on A36 Plate
M - Low Carbon SteelP - Rolled PlateAp - StructureCd - Pierced
Cm - Surface Aspect by SEMDf - Melted film
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