metallurgy – replication and inspection
TRANSCRIPT
www.rolls-royce.com NUCLEAR INNOVATION & TECHNOLOGY
CAPABILITY SHEET
COMMISSIONING AND IN-SERVICE SUPPORT
• RemoteSurfaceReplication
• MicroscopicExamination
• HighDefinitionto<1μm
• AccurateDimensionalSurveys
• EACandSCCDetectionCapability
• PermanentRecord
• HighStrengthandElasticity
• RecoverablefromComplex and Tortuous Geometry
• RemoteGritBlasting,ChemicalEtchingandPolishingmethodsforSurface Preparation
Background
Rolls-Royce has developed a range of replication techniquesutilisingcompoundsdevelopedinconjunctionwiththesuppliertosolvemanycomplexanddifficultinspectionrequirements.Thereplica’sabilitytoprovidehighdefinitionsurfacereplicationtogetherwithbespokeapplicationandsurfacepreparationequipmentallowshighqualitysurfaceexaminationinremotelocations.These replicas can then be inspected in a laboratory providingahighqualityexaminationinalowdoseenvironment
Replication offers:
• Theabilitytoinspectinaccessiblesurfacesindirectlybyvisualandmicroscopictechniques,includinghighmagnificationScanningElectronMicroscopy.
• Theextractionofsurfaceparticlesbythereplicamaterial also provides a means of analysing surface contaminants.
• Theabilitytorecordsizemeasurementsanddefectlocation data in very high dose areas.
• Apermanentrecordofthesiteofinterest,allowingdefect monitoring over time by comparison with previous replicas.
• Inairorunderwaterapplication.
• Elasticmaterialpropertiesallowingreplicationofcavities and other undercut geometries.
• Theabilitytoobtainmicrostructuralinformationfrommetallurgically prepared surfaces.
• Resolutionofsurfacetexturesto<1μmwhilstmaintainingexposuretoionisingradiationtolevelsthatareALARP.
Arangeofreplicationmedia,(bothputtyandacetate)areavailable to suit different applications. Replication materials are available with a range of viscosities and curing rates. For remote application this allows transport time for the material to the inspection site, over long distances when required.Compensationmayalsobemadeforplanttemperature.
Rolls-Royce metallurgy have the capability to replicate – inspect remote surfaces underwater.
Metallurgy–ReplicationandInspectionRemoteSurfaceMeasurementandMicroscopicExamination
Rolls-Royce Power Engineering plc POBox2000,DerbyDE217BD,England
Tel:+44(0)1332632688 Fax:+44(0)1332622936 Email: [email protected]
www.rolls-royce.com
©2010Rolls-Royceplc
Whilst this information is given in good faith, no warranty or representation is given concerning such information,whichmustnotbetakenasestablishingany contractual or other commitment binding upon Rolls-Royce plc or any of its subsidiary companies.
Metallurgical inspection Capability
Metallurgy–ReplicationandInspection
Semiautomatedreplicationequipmentforinspecting “blind hole” geometries
Manuallyoperatedreplicationandinspectionequipment
Automatedmanipulatorforremotereplication of motor tubes.
• SQUEPMetallurgists
• Macroandmicroscopicexamination
• RemoteInspectionCapabilities
• SEMandmicroanalysisexamination
Typical Current Applications
• Remotereplicationofboilertubesurfaces–stainlesssteel.
• RemotereplicationofTitaniumheatexchangerwelds–offshoreplatform.
• Internalsurfacereplicationofhightemperature/pressurepolymermanufacturingvessels.
• Internalsurfaceboltholereplication–valves,engines,conrods–marineapplications.
• Inspectionofcupro-nickelalloyheatexchangertubes.
• Surfaceinspectionofshipspropulsorbladesinthemanufacturersworkshop
1-Intergranularcrackinginreplicated surface
2–Characterfracturesurfaceofreplica.Detailofintergranularcrackingshownin(1)
3–ReplicaisamenabletohighmagnificationexaminationandmicroanalysisbySEM.Detailofoxideonintergranularfacetsshownin(2)
7166/CS.03/Aug10