Aspect Before Analysis

4 cases · 6 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Application: Engine Standard: UNS clear all

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Aspect of a flared tubing, cold deformed at 37°, and the circumferential cracking.
483
VIEW
ML00167 / Aug.2020
Fatigue of a Flared Tubing Connection
M - Austenitic Stainless SteelP - TubingAp - EngineCd - Mechanical Fatigue
Cm - Aspect Before AnalysisDf - General View
General view of the nodular cast iron crankshaft, 240 mm long, in process of heat treatment. The main and rod bearings, 54 mm diameter, are heat treated by localized quenching and tempering.
1018
VIEW
ML00154 / Jan.2019
High Strength Cast Iron Crankshaft
M - Nodular Cast IronP - CastingAp - EngineCd - Surface treatment
Cm - Aspect Before AnalysisDf - General View
Shaft pinion presenting the bearing surface, with machining markes, from where the thermal spray layer was detached. The diameter of the 880 mm long shaft in this region is about 75 mm.
426
VIEW
ML00108 / Dec.2017
Thermal Spray Layer in a Pinion Shaft
M - High Strength Low AlloyP - ShaftAp - EngineCd - Coating Defect
Cm - Aspect Before AnalysisDf - General View
Bimetallic engine bearing, removed from service at the end of its life.
356
VIEW
ML00083 / Oct.2017
Steel Back of a Bimetallic Engine Bearing
M - Low Carbon SteelP - Cold FormedAp - ShipCd - Removed From Service
Cm - Aspect Before AnalysisDf - General View

More from these cases

ML00167 — Fatigue of a Flared Tubing ConnectionM - Austenitic Stainless SteelP - TubingAp - EngineCd - Mechanical Fatigue
Same flared tubing, with a circumferential crack, with the focus at the internal side.
65
VIEW
ML00167 / Aug.2020
Fatigue of a Flared Tubing Connection
M - Austenitic Stainless SteelP - TubingAp - EngineCd - Mechanical Fatigue
Cm - Aspect Before AnalysisDf - General View
ML00108 — Thermal Spray Layer in a Pinion ShaftM - High Strength Low AlloyP - ShaftAp - EngineCd - Coating Defect
Detail of the detached layer, about 1.5 mm thick.
48
VIEW
ML00108 / Dec.2017
Thermal Spray Layer in a Pinion Shaft
M - High Strength Low AlloyP - ShaftAp - EngineCd - Coating Defect
Cm - Aspect Before AnalysisDf - Layer Detachment