Aspect Before Analysis

26 cases · 55 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Product: Raw Material Condition: Damage Standard: UNS clear all

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Front wheel 17 x 7J of a passenger vehicle (identified as WHEEL 1) that broke during a car accident on a road.
1645
VIEW
ML00183 / Dec.2022
Ductile Behavior of an Aluminum Wheel
M - Aluminum Silicon MagnesiumP - CastingAp - AutomotiveCd - Ductile Behavior
Cm - Aspect Before AnalysisDf - General View
Visual aspect of the internal side of the tube, after longitudinal cut, presenting regions where the internal layer is fully stained.
55
VIEW
ML00170 / Sep.2020
MIC in Aluminum Brass Tubes
M - Aluminum BrassP - Seamless tubeAp - MaritimeCd - Preferential Dissolution
Cm - Aspect Before AnalysisDf - Internal Surface
Aspect "as received" of the seamless tube at the curved position, showing the longitudinal crack and corrosion products at the tube surface.
836
VIEW
ML00165 / Jul.2020
SCC of Aluminum Bronze Heating Coil
M - Aluminum BronzeP - Seamless tubeAp - Oil and GasCd - Stress Corrosion
Cm - Aspect Before AnalysisDf - General View
Red painted device where the 50 mm x 50 mm 6061 T6 aluminum alloy plate was positioned (in the circle). The image presents the target, positioned 100 meters far from the gun, after the shot and the projectile perforated the plate.
478
VIEW
ML00145 / Sep.2018
Impact of a .380 Winchester on 6061 T6 Plate
M - Aluminum Magnesium SiliconP - Rolled PlateAp - StructureCd - Pierced
Cm - Aspect Before AnalysisDf - General View
Red painted device where the 50 mm x 50 mm titanium alloy plate was positioned (in the circle). The image presents the target, positioned 100 meters far from the gun, after the shot and the projectile did not perforate the plate, but presented a strong effect, as will be presented in the other figures.
487
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Aspect Before AnalysisDf - General View
Aspect of the male part of the coupling, a pin, presenting the thermal spray layer detachment (right side of the figure). The pin was manufactured in a superduplex stainless steel tubular forging; the external surface was partially coated by thermal spray and machined. The sealing is only elastomeric but a coating is required to avoid galling between the two materials of the coupling.
1154
VIEW
ML00146 / Jul.2018
Plastic Deformation of a SDSS Riser Pin
M - Super Duplex Stainless SteelP - PinAp - O&G Well DrillingCd - Bending
Cm - Aspect Before AnalysisDf - Layer Detachment
Aspect of the cracked valve body, after disassembling and removing the internal parts. The valve is part of a lot that was manufactured by forging a cubic 170mm from a forged bar in SDSS UNS S32760, and heat treated (solution annealed) by the forging company. The fabrication using these bodies included the machining, fillet weld two inserts in Alloy 625, machining again, assembling the internals, and pressure test at 15,000 psi. The cracking occurred during test, only for this valve body.
676
VIEW
ML00134 / Aug.2020
Brittle Fracture of a Superduplex Valve Body
M - Super Duplex Stainless SteelP - Fabrication WeldAp - SubseaCd - Brittle Fracture
Cm - Aspect Before AnalysisDf - Cracking
Aspect of the CuZn platesheet where it is corroded (cooling medium side). The (hot) air cooler uses treated seawater as the cooling medium and the corroded regions are associated to the regions in the heat exchanger of higher temperatures, and the leakage occurred in regions of contact of the platesheet to cooper alloy tubes.
1167
VIEW
ML00125 / Mar.2018
Dezincification of a Cooler Tubesheet
M - BrassP - PlateAp - ShipCd - Preferential Dissolution
Cm - Aspect Before AnalysisDf - Corrosion

More from these cases

ML00183 — Ductile Behavior of an Aluminum WheelM - Aluminum Silicon MagnesiumP - CastingAp - AutomotiveCd - Ductile Behavior
Front wheel 17 x 7J of a passenger vehicle (identified as WHEEL 2) that cracked exactly in the same location that the other front wheel broke.
91
VIEW
ML00183 / Dec.2022
Ductile Behavior of an Aluminum Wheel
M - Aluminum Silicon MagnesiumP - CastingAp - AutomotiveCd - Ductile Behavior
Cm - Aspect Before AnalysisDf - General View
Aspect of the two wheels before disassembling the tires.
75
VIEW
ML00183 / Dec.2022
Ductile Behavior of an Aluminum Wheel
M - Aluminum Silicon MagnesiumP - CastingAp - AutomotiveCd - Ductile Behavior
Cm - Aspect Before AnalysisDf - General View
Detail of the fracture in the WHEEL 1, changing direction of propagation.
71
VIEW
ML00183 / Dec.2022
Ductile Behavior of an Aluminum Wheel
M - Aluminum Silicon MagnesiumP - CastingAp - AutomotiveCd - Ductile Behavior
Cm - Aspect Before AnalysisDf - Fracture
Detail of the crack in the WHEEL 2, changing direction of propagation exactly like the other whel.
66
VIEW
ML00183 / Dec.2022
Ductile Behavior of an Aluminum Wheel
M - Aluminum Silicon MagnesiumP - CastingAp - AutomotiveCd - Ductile Behavior
Cm - Aspect Before AnalysisDf - Cracking
ML00165 — SCC of Aluminum Bronze Heating CoilM - Aluminum BronzeP - Seamless tubeAp - Oil and GasCd - Stress Corrosion
SCC of Aluminum Bronze Heating Coil
1
VIEW
ML00165 / Jul.2020
SCC of Aluminum Bronze Heating Coil
M - Aluminum BronzeP - Seamless tubeAp - Oil and GasCd - Stress Corrosion
Cm - Aspect Before AnalysisDf - General View
SCC of Aluminum Bronze Heating Coil
2
VIEW
ML00165 / Jul.2020
SCC of Aluminum Bronze Heating Coil
M - Aluminum BronzeP - Seamless tubeAp - Oil and GasCd - Stress Corrosion
Cm - Aspect Before AnalysisDf - Internal Surface
ML00145 — Impact of a .380 Winchester on 6061 T6 PlateM - Aluminum Magnesium SiliconP - Rolled PlateAp - StructureCd - Pierced
Aspect of the 3/8" thickness plate, 50 mm x 50 mm, of the aluminum alloy plate, in the face of impact with the projectile. The plate was perforated by the bullet.
52
VIEW
ML00145 / Sep.2018
Impact of a .380 Winchester on 6061 T6 Plate
M - Aluminum Magnesium SiliconP - Rolled PlateAp - StructureCd - Pierced
Cm - Aspect Before AnalysisDf - General View
Other view of the 3/8" thickness, 50 mm x 50 mm, 6061 T6 aluminum plate, in the face of impact with the projectile. The plate suffered a localized perforation.
34
VIEW
ML00145 / Sep.2018
Impact of a .380 Winchester on 6061 T6 Plate
M - Aluminum Magnesium SiliconP - Rolled PlateAp - StructureCd - Pierced
Cm - Aspect Before AnalysisDf - General View
Other view of the 3/8" thickness, 50 mm x 50 mm, 6061 T6 aluminum plate, in the opposite face of impact. The plate suffered a localized perforation and this image shows the position of the exit of the bullet.
31
VIEW
ML00145 / Sep.2018
Impact of a .380 Winchester on 6061 T6 Plate
M - Aluminum Magnesium SiliconP - Rolled PlateAp - StructureCd - Pierced
Cm - Aspect Before AnalysisDf - General View
ML00144 — Impact of a .380 Winchester on Ti64 PlateM - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Aspect of the 3/8" thickness plate, 50 mm x 50 mm, of the titanium alloy, in the face of impact with the projectile. The plate was not perforated by the bullet, but suffered localized plastic deformation.
33
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Aspect Before AnalysisDf - General View
Other view of the 3/8" thickness plate, 50 mm x 50 mm, of titanium alloy, in the face of projectile impact. The plate suffered a localized plastic deformation, but no perforation.
26
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Aspect Before AnalysisDf - General View
Other view of the 3/8" thickness plate, 50 mm x 50 mm, of the titanium alloy, in the opposite face of impact. The plate did not suffered perforation but it is fully cracked at the bullet impact. The red painting of the device marked the back surface of the plate where it was in contact.
22
VIEW
ML00144 / Aug.2018
Impact of a .380 Winchester on Ti64 Plate
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Non-Pierced
Cm - Aspect Before AnalysisDf - General View
ML00134 — Brittle Fracture of a Superduplex Valve BodyM - Super Duplex Stainless SteelP - Fabrication WeldAp - SubseaCd - Brittle Fracture
Detailed aspect of the cracking, straight and presenting a brittle aspect.
122
VIEW
ML00134 / Aug.2020
Brittle Fracture of a Superduplex Valve Body
M - Super Duplex Stainless SteelP - Fabrication WeldAp - SubseaCd - Brittle Fracture
Cm - Aspect Before AnalysisDf - Cracking
Detail of the internal bore, showing a brittle crack through the wall.
106
VIEW
ML00134 / Aug.2020
Brittle Fracture of a Superduplex Valve Body
M - Super Duplex Stainless SteelP - Fabrication WeldAp - SubseaCd - Brittle Fracture
Cm - Aspect Before AnalysisDf - Cracking
Image of the external surface of the valve body at the region where the Alloy 625 insert was fillet weld to the SDSS valve body. The surface was later machined, so it is possible to see only a mark indicating where the weld is. The brittle crack is arrested at the margin of the weld. It is possible to see strong deformation at the crack tip when it arrives the weld.
41
VIEW
ML00134 / Aug.2020
Brittle Fracture of a Superduplex Valve Body
M - Super Duplex Stainless SteelP - Fabrication WeldAp - SubseaCd - Brittle Fracture
Cm - Aspect Before AnalysisDf - External Surface