Title: Irradiation Embrittlement Monitoring Procedures and Results of Reactor Pressure Vessels WWER Type
Authors: KUPCA Ludovit
Editors: VON ESTORFF Ulrik
Citation: International Journal of Nuclear Knowledge Management vol. 4 no. 3 p. 243-263
Publisher: Inderscience
Publication Year: 2010
JRC Publication N°: JRC59467
ISSN: 1479-540X (print), 1479-5418 (online)
URI: http://www.inderscience.com/browse/index.php?journalID=92&year=2010&vol=4&issue=3
http://publications.jrc.ec.europa.eu/repository/handle/JRC59467
DOI: 10.1504/IJNKM.2010.036912
Type: Articles in Journals
Abstract: This paper describes part of a knowledge preservation programme coordinated by JRC Petten. The following issues are discussed and analysed: comparison of surveillance specimen results from WWER-440 and 1000 units; surveillance specimen programme modernisation based on the new philosophy and approaches; the efficiency of Reactor Pressure Vessel (RPV) steel annealing by implementation of procedures such as boat sampling, instrumented hardness, neutron diffraction, positron annihilation, etc.; the analyses of irradiated samples from RPV materials by modern methods; the irradiation embrittlement of the RPV weld metal due to the effects of impurities; the evaluation of RPV irradiation embrittlement trends during planned LTO; critical analyses of existing rules and codes, used by lifetime evaluation; theoretical models which may more or less describe the influence of impurities in RPV steels; evaluation of impact and toughness test results by implementation of the ‘master curve approach’.
JRC Institute:Institute for Energy and Transport

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