Corrosion

2 cases · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Capture method: Optical Microscope Detail focus: Secondary Cracks clear all

Corrosion — sub-branches

Brittle Behavior 7Corrosion Fatigue 7Crevice 1Erosion Corrosion 1General Corrosion 1Intergranular Corrosion 3Localized Dissolution 2Pitting Corrosion 4Preferential Dissolution 4Stress Corrosion 9

Results

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Micrographic detail of the intergranular morphology of the cracking, adjacent to the fracture surface, in the starting point of the failure.
37
VIEW
ML00137 / Mar.2021
Brittle Fracture of a 15-5 PH Valve Spring
M - Precipitation Hardened Stainless SteelP - SpringAp - Oil and GasCd - Brittle Behavior
Cm - Kalling Etched Micrography by OMDf - Secondary Cracks
Micrography of the pin in a longitudinal section, at the pin surface showing several secondary cracks, without plastic deformation, filled with products and branched.
34
VIEW
ML00085 / Nov.2017
Corrosion Fatigue of a Martensitic SS Pin
M - Martensitic Stainless SteelP - Forged PinAp - O&G Well DrillingCd - Corrosion Fatigue
Cm - Kalling Etched Micrography by OMDf - Secondary Cracks

More from these cases

ML00085 — Corrosion Fatigue of a Martensitic SS PinM - Martensitic Stainless SteelP - Forged PinAp - O&G Well DrillingCd - Corrosion Fatigue
Micrography of the pin in a longitudinal section, at the pin surface showing several secondary cracks, without plastic deformation, filled with products and branched.
36
VIEW
ML00085 / Nov.2017
Corrosion Fatigue of a Martensitic SS Pin
M - Martensitic Stainless SteelP - Forged PinAp - O&G Well DrillingCd - Corrosion Fatigue
Cm - Kalling Etched Micrography by OMDf - Secondary Cracks
Micrography of the pin in a longitudinal section, at the pin surface showing a secondary crack, without plastic deformation, filled with products and branched.
36
VIEW
ML00085 / Nov.2017
Corrosion Fatigue of a Martensitic SS Pin
M - Martensitic Stainless SteelP - Forged PinAp - O&G Well DrillingCd - Corrosion Fatigue
Cm - Kalling Etched Micrography by OMDf - Secondary Cracks