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4 cases · 7 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Pearlitic Detail focus: General View clear all

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Aspect of the wire rope, 1 1/2" diameter, presenting regions of flattened areas at the surface of the outer wires. It is a 6 x 19 Seale construction, right regular lay.
553
VIEW
ML00175 / Aug.2021
Localized External Wear of a Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Wear
Cm - Aspect Before AnalysisDf - General View
Concrete steel strand general view, presenting fracture of several wires and a corroded aspect. The full part is composed by 19 strands, each strand using 7 wires, and each wire about 5 mm diameter.
834
VIEW
ML00155 / Jan.2020
Failure of a Prestressed Concrete Steel Strand
M - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
Cm - Aspect Before AnalysisDf - General View
The shaft was removed from service without a failure. It was 4' long and the diameters varied from 2 1/2" to 4 1/2". It was analyzed to be specified for purchasing a new one but properties evidenced bad ductility and brittle behavior even at ambient temperature, associated to a microestruture "as hot rolled".
1238
VIEW
ML00152 / Dec.2018
Low Alloy Steel Pump Shaft
M - High Strength Low AlloyP - ShaftAp - Oil and GasCd - Removed From Service
Cm - Aspect Before AnalysisDf - General View
Schematic drawing from a macrosection of the TR57 rail, showing the dimensions and usual terminology.
43
VIEW
ML00091 / Sep.2017
Flat Bottom Rail TR57
M - High Strength Low AlloyP - RailAp - TransportationCd - Typical manufacturing
Cm - Transverse Section AspectDf - General View

More from these cases

ML00175 — Localized External Wear of a Wire RopeM - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Wear
Detail of the IWRC with 6 strands of 7 wires plus the core. It is possible to see that the outer wires of the external strands are plastically deformed, mainly in the upper side of the figure; and the core is manufactured using galvanized wires.
39
VIEW
ML00175 / Aug.2021
Localized External Wear of a Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Wear
Cm - Transverse Section AspectDf - General View
Detail of the IWRC with 6 strands of 7 wires plus the core. It is possible to see that the outer wires of the external strands are plastically deformed, mainly in the upper side of the figure; and the core is manufactured using galvanized wires.
3
VIEW
ML00175 / Aug.2021
Localized External Wear of a Wire Rope
M - High Carbon SteelP - Wire RopeAp - Oil and GasCd - Wear
Cm - Transverse Section AspectDf - General View
ML00155 — Failure of a Prestressed Concrete Steel StrandM - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
General aspect of the degradated wires of the strand, most part presenting rust and rupture.
107
VIEW
ML00155 / Jan.2020
Failure of a Prestressed Concrete Steel Strand
M - High Carbon SteelP - Wire RopeAp - StructureCd - Corrosion Fatigue
Cm - Aspect Before AnalysisDf - General View