Raw Material

6 cases · 7 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Capture method: Longitudinal Section Aspect clear all

Raw Material — sub-branches

Bar 5Carburized 1Casting 16Chromium Plated 2Cold Formed 2Forged T 1Forging 12Heat Treated Part 4Machined Part 10Pipe 20Plate 1Rod 1Rolled Bar 2Rolled Plate 19Rolled Shape 1Sheet 1Tube 17Tubular Forging 6Welded Part 1Wire 3Wrought Fitting 3

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Aspect of a typical .308 Winchester projectile, similar to the one adopted to shot the plate, cut in a longitudinal section. It is a Cu alloy case filled with Pb-Sb.
61
VIEW
ML00145 / Sep.2018
Impact of a .380 Winchester on 6061 T6 Plate
M - Aluminum Magnesium SiliconP - Rolled PlateAp - StructureCd - Pierced
Cm - Longitudinal Section AspectDf - Longitudinal Section
Aspect of a typical .308 Winchester projectile, similar to the one adopted to shot the plate, cut in a longitudinal section. It is a Cu alloy case filled with Pb-Sb.
34
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Longitudinal Section AspectDf - Longitudinal Section
The longitudinal section of the pin shows that it was deformed in a localized position, where the layer was detached, top side of the figure. The pin wall was plastically deformed decreasing the internal diameter.
222
VIEW
ML00146 / Jul.2018
Plastic Deformation of a SDSS Riser Pin
M - Super Duplex Stainless SteelP - PinAp - O&G Well DrillingCd - Bending
Cm - Longitudinal Section AspectDf - Plastic Deformation
Aspect of a typical .308 Winchester projectile, similar to the one adopted to shot the plate, cut in a longitudinal section. It is a Cu alloy case filled with Pb-Sb.
92
VIEW
ML00143 / Aug.2018
Impact of a .308 Winchester on A36 Plate
M - Low Carbon SteelP - Rolled PlateAp - StructureCd - Pierced
Cm - Longitudinal Section AspectDf - Longitudinal Section
Aspect of a typical .308 Winchester projectile, similar to the one adopted to shot the plate, cut in a longitudinal section. It is a Cu alloy case filled with Pb-Sb.
57
VIEW
ML00142 / Aug.2018
Impact of a .308 Winchester on AR500 Plate
M - Low Alloy Wear ResistantP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Longitudinal Section AspectDf - Longitudinal Section
Aspect of a transverse section of the 4" pipe showing the barnacles adhered to the internal pipe surface, and the leakage position (in the top of the figure). It is possible to see that the deposits are attached all throught the internal pipe perimeter but the damage is localized. The damage morphology suggests it is a crack, or a welding defect, but the microstructural analysis indicated that the damage is a galvanic effect at the autogenous seam weld.
1135
VIEW
ML00140 / May.2019
Preferential Corrosion of Pipe Seam Weld
M - Low Carbon SteelP - Longitudinal Seam Welded PipeAp - ShipCd - Preferential Dissolution
Cm - Longitudinal Section AspectDf - Localized Corrosion

More from these cases

ML00146 — Plastic Deformation of a SDSS Riser PinM - Super Duplex Stainless SteelP - PinAp - O&G Well DrillingCd - Bending
The longitudinal section of the pin at the region of the thermal spray layer detachment, showing that the pin suffered a localized lateral bending with strong plastic deformation, responsible for the layer detachment. The figure shows the external surface (top of the figure) with the layer detachment (gray aspect), the thickness of the pin (deformed) and the internal surface (bright aspect).
124
VIEW
ML00146 / Jul.2018
Plastic Deformation of a SDSS Riser Pin
M - Super Duplex Stainless SteelP - PinAp - O&G Well DrillingCd - Bending
Cm - Longitudinal Section AspectDf - Plastic Deformation