Spring

2 cases · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Detail focus: Secondary Cracks clear all

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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.
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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 a longitudinal section of the wire, at the fracture surface (top of the figure) evidencing the intergranular and transgranular aspects of the hydrogen assisted cracking mechanism.
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ML00076 / Jun.2017
Hydrogen Cracking of a 17-7 PH Subsea Spring
M - Precipitation Hardened Stainless SteelP - WireAp - SubseaCd - Hydrogen Embrittlement
Cm - Micrography by OM using A262 Method ADf - Secondary Cracks