Ductile Behavior

1 case · 1 image for “fracture”

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Standard: API Capture method: Optical Microscope clear all

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Micrography of a longitudinal section of the pipe at the fracture position, in the thinner thickness. The diagonal line in the middle of the figure is the fracture surface and it is possible to identify that it was sheared with strong plastic deformation. The segregation bands (longitudinal lines) are deformed in the direction of the failure shearing, in a depth that is several milimeters deep in the pipe, from the fracture surface.
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ML00159 / Mar.2020
Collapse of a Drill Pipe
M - Low Alloy Medium Carbon QTP - Drill PipeAp - O&G Well DrillingCd - Ductile Behavior
Cm - Nital Etched Micrography by OMDf - Ductile Fracture