Longitudinal Section

2 cases · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

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The longitudinal section of the spring wire shows a strain hardened martensitic structure, aged to high strength (602 HV 0.3kg). Previous austenite grains are elongated.
55
VIEW
ML00076 / Jun.2017
Hydrogen Cracking of a 17-7 PH Subsea Spring
M - Precipitation Hardened Stainless SteelP - WireAp - SubseaCd - Hydrogen Embrittlement
Cm - Kalling Etched Micrography by OMDf - Longitudinal Section
Longitudinal section of the 3.6 mm wire, presenting a refined structure.
46
VIEW
ML00036 / Jan.2018
High Strength Medium Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Longitudinal Section

More from these cases

ML00076 — Hydrogen Cracking of a 17-7 PH Subsea SpringM - Precipitation Hardened Stainless SteelP - WireAp - SubseaCd - Hydrogen Embrittlement
Micrographic detail of the strain hardened aged martensitic structure. Small aligned delta ferrite islands can be seen.
51
VIEW
ML00076 / Jun.2017
Hydrogen Cracking of a 17-7 PH Subsea Spring
M - Precipitation Hardened Stainless SteelP - WireAp - SubseaCd - Hydrogen Embrittlement
Cm - Kalling Etched Micrography by OMDf - Longitudinal Section
ML00036 — High Strength Medium Carbon Steel WireM - Medium Carbon SteelP - WireAp - OffshoreCd - Typical manufacturing
Longitudinal section of the 3.6 mm wire, presenting a strain hardened structure, predominantly perlitic.
41
VIEW
ML00036 / Jan.2018
High Strength Medium Carbon Steel Wire
M - Medium Carbon SteelP - WireAp - OffshoreCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Longitudinal Section