Thermographic Techniques - Arevaus.areva.com/home/liblocal/docs/Catalog/PWR/ANP_U... · • Flash...
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Thermographic techniques include: • Passive Thermography: Simply using IR cameras to check for hot spots • Photo-Thermal Camera: Laser-generated heat stripe propagates more slowly across cracks. Time sequence processed images can identify these cracks as well or better than PT remotely (to several feet and with no chemicals) • Flash Thermography (inductive, radiant, conductive): Transient heat dissipation rates can indicate wall thinning from a number of damage mechanisms • Vibrothermography: Ultrasonic energy can cause cracks to “light-up” from friction between crack surfaces Features and Benefits • Remote: IR camera can be located remotely (up to several feet) • No Chemicals: Unlike PT and MT surface tests, thermographic techniques generally do not require any coatings or chemicals • IR images are analogous to visual images, so anomaly locations and orientations are easily related to the component geometry Thermographic Techniques Passive, Flash, Vibro and Laser Thermography AREVA NDE-Solutions Modern infrared (IR) cameras can detect component anomalies including cracks, erosion, corrosion, wear and other wall- thinning effects. RPV Head CRD nozzle J-Weld crack (lower right) lights up under ultrasonic excitation Photothermal Camera (CPA) replaces PT and other surface NDE on hydroelectric water wheel
Transcript of Thermographic Techniques - Arevaus.areva.com/home/liblocal/docs/Catalog/PWR/ANP_U... · • Flash...
Thermographic techniques include:• PassiveThermography:SimplyusingIRcameras tocheckforhotspots
• Photo-ThermalCamera:Laser-generatedheat stripepropagatesmoreslowlyacrosscracks. Timesequenceprocessedimagescanidentify thesecracksaswellorbetterthanPTremotely (toseveralfeetandwithnochemicals)
• FlashThermography(inductive,radiant, conductive):Transientheatdissipationrates canindicatewallthinningfromanumberof damagemechanisms
• Vibrothermography:Ultrasonicenergycan causecracksto“light-up”fromfrictionbetween cracksurfaces
Features and Benefits• Remote:IRcameracanbelocatedremotely (uptoseveralfeet)
• NoChemicals:UnlikePTandMTsurfacetests, thermographictechniquesgenerallydonotrequire anycoatingsorchemicals
• IRimagesareanalogoustovisualimages,so anomalylocationsandorientationsareeasily relatedtothecomponentgeometry
Thermographic TechniquesPassive, Flash, Vibro and Laser Thermography
AREVA NDE-Solutions
Moderninfrared(IR)camerascandetectcomponentanomaliesincludingcracks,erosion,corrosion,wearandotherwall-thinningeffects.
RPV Head CRD nozzle J-Weld crack (lower right) lights up under ultrasonic excitation
Photothermal Camera (CPA) replaces PT and other surface NDE on hydroelectric water wheel
The data and information contained herein are provided solely for illustration and informational purposes and create no legal obligations by AREVA. None of the information or data is intended by AREVA to be a representation or a warranty of any kind, expressed or implied, and AREVA assumes no liability for the use of or reliance on any information or data disclosed in this document. © 2013 AREVA Inc. All rights reserved.
For more information contact AREVA NDE-Solutions Regional Sales Manager [email protected]
U.S.:EddieIvinsOffice:+14348323781Cell:+14348413562
France:JeanPierreGustinOffice:+33149784041Cell:+33607623163
Germany: WolfgangHaaseOffice:+49913190068030Cell:+4990069660 7/13 ANP:U-388-V2-13-ENG
Comparison of Penetrant and Thermographic Testing
Photo-Thermal Camera detects crack influence on laser-initiated thermal wave
Inspected Area
Penetrant TestingThermographic Testing
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