Vibration Induced Fatigue

1 case · 13 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Granular clear all

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Macroscopic aspect of the 1" shaft fracture surface, revealing beach marks at the surface typical of fatigue, initiated from the surface of the spline shaft at the gear position.
498
VIEW
ML00041 / Jun.2017
Fatigue Fracture of Inconel 718 Spline Shaft
M - NiCrFe AlloyP - ShaftAp - Oil and GasCd - Vibration Induced Fatigue
Cm - Aspect Before AnalysisDf - Fatigue Fracture

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ML00041 — Fatigue Fracture of Inconel 718 Spline ShaftM - NiCrFe AlloyP - ShaftAp - Oil and GasCd - Vibration Induced Fatigue
xx
117
VIEW
ML00041 / Jun.2017
Fatigue Fracture of Inconel 718 Spline Shaft
M - NiCrFe AlloyP - ShaftAp - Oil and GasCd - Vibration Induced Fatigue
Cm - Aspect Before AnalysisDf - At the Surface
Macroscopic aspect of the 1" shaft fracture surface, revealing beach marks at the surface typical of fatigue, initiated from the surface of the spline shaft at the gear position.
120
VIEW
ML00041 / Jun.2017
Fatigue Fracture of Inconel 718 Spline Shaft
M - NiCrFe AlloyP - ShaftAp - Oil and GasCd - Vibration Induced Fatigue
Cm - Aspect Before AnalysisDf - Fatigue Fracture
SEM fractograph at 1200x magnification showing an intergranular fracture surface with angular, faceted grains and fine feather-like markings.
86
VIEW
ML00041 / Jun.2017
Fatigue Fracture of Inconel 718 Spline Shaft
M - NiCrFe AlloyP - ShaftAp - Oil and GasCd - Vibration Induced Fatigue
Cm - Fractography by SEMDf - Fatigue Fracture
Microscopic detail of the transgranular striation in the fracture surface.
77
VIEW
ML00041 / Jun.2017
Fatigue Fracture of Inconel 718 Spline Shaft
M - NiCrFe AlloyP - ShaftAp - Oil and GasCd - Vibration Induced Fatigue
Cm - Fractography by SEMDf - Fatigue Fracture
The micrography of a transverse section of the shaft shows the granular austenitic structure close to the surface of the shaft.
67
VIEW
ML00041 / Jun.2017
Fatigue Fracture of Inconel 718 Spline Shaft
M - NiCrFe AlloyP - ShaftAp - Oil and GasCd - Vibration Induced Fatigue
Cm - Kalling Etched Micrography by OMDf - At the Surface

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