Application of surveillance programme results to reactor pressure vessel integrity assessment: results of a coordinated research project, 2000-2004
International Atomic Energy Agency, 2005 - Business & Economics - 57 pages
This publication has been developed under the Coordinated Research Project (CRP) entitled 'Surveillance Programme Results Application to Reactor Pressure Vessel Integrity Assessment'. This publication provides a summary of master curve fracture toughness test results on small surveillance-type specimens of the IAEA reference material JRQ and other national steels from numerous laboratories throughout the world. These results were a key ingredient used in the development of the guidance given in IAEA Technical Report Series No.429 'Guidelines for Application of the Master Curve Approach to Reactor Pressure Vessel Integrity'. This publication has been written to allow utility engineers and scientists to directly measure fracture toughness and apply the results using the master curve approach for RPV structural integrity assessment.
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INTRODUCTION AND BACKGROUND
MASTER CURVE ANALYSIS OF JRQ MATERIAL
MASTER CURVE ANALYSIS OF NATIONAL STEELS
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1T-CT specimens 1T-CT TL 3JRQ 5JRQ 6JRQ Plate Tested A533B Steel ASTM bainite base metal bend bias Charpy size SE(B Charpy V-notch cleavage fracture Code JRQ Block comparison CRP Phase CT specimens Czech Republic Different Laboratories E-mail embrittlement error band estimate Fifth CRP Figure Fourth CRP fracture mechanics fracture toughness data fracture toughness tests IAEA impact testing inhomogeneity irradiated JRQ material JRQ steel KJc w/Charpy Kurchatov Institute martensitic Master Curve analysis Master Curve approach measured mm/min multi-temperature N/mm national materials national steels neutron non-irradiated number of specimens P.O. Box parameter performed previous CRPs Reactor Pressure Vessel reference temperature Rossendorf RPV integrity RPV steels single temperature specimen giving specimen types Telephone temperature dependence Test Matrix Test Method test results test temperature tests of JRQ transition temperature unirradiated valid w/Charpy size SS weld metal Yes No Yes yield strength Young's modulus