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Bodineau, Herve; Collet, Julien; Rigail, Anne-Cecile; Schuler, Matthieu; Sorro, Jean-Francois; Autret, Jean-Claude; Balahy, Laurent; Billon, Francois; Buisine, Denis; Champigny, Francois; Couplet, Damien; Drobysz, Sophie; Ehrlacher, Alain; Houze, Marc; Jendrich, Uwe; Martinez Martin, Jose Angel; Monnot, Bernard; Nedelec, Michel; Payen, Thierry; Perrat, Gerard; Perrin, Gilles; Pitoiset, Xavier; Rotter, Bernard; Roussel, Guy; Weyn, Andre
Institut de Radioprotection et de Surete Nucleaire - IRSN, 31, avenue de la Division Leclerc, 92260 Fontenay-aux-Roses (France); Autorite de surete nucleaire - ASN, 15, rue Louis Lejeune, CS 70013, 92541 Montrouge cedex (France)2020
Institut de Radioprotection et de Surete Nucleaire - IRSN, 31, avenue de la Division Leclerc, 92260 Fontenay-aux-Roses (France); Autorite de surete nucleaire - ASN, 15, rue Louis Lejeune, CS 70013, 92541 Montrouge cedex (France)2020
AbstractAbstract
[en] Whereas the return on experience from EDF nuclear plants revealed (already during the 70's) a risk of stress corrosion cracking for some nickel-based alloys in different components, and as this risk can put the integrity of components of main primary circuits into question again, this document reports the reviewing of the EDF file concerning this issue and therefore updating previous documents in order to take this issue into account. It indicates and comments elements and methods introduced in this update: international and national returns on experience, update of knowledge related to materials (cracking kinetics, case of the 690 alloy and associated alloying metals), evolution of the method of assessment of the risk of stress corrosion cracking, implementation of non destructive tests for several controls, and maintenance strategy for vessel bottom penetrations. ASN opinions, and opinions and recommendations of a group of experts about these different aspects are gathered in attached documents
Original Title
Dossier 'Zones en InconelTM'. Mise a jour du dossier 'Zones en Inconel du circuit primaire principal' et coherence de la strategie de maintenance associee. Avis et recommandations relatif a la mise a jour du dossier 'Zones en Inconel du circuit primaire principal'
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Secondary Subject
Source
6 Nov 2020; 28 Apr 2021; 35 p; 13 refs; Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses
Record Type
Miscellaneous
Report Number
Country of publication
CHEMICAL REACTION KINETICS, CORROSION RESISTANCE, CRACK PROPAGATION, FRANCE, FRENCH ORGANIZATIONS, INCONEL ALLOYS, NUCLEAR POWER PLANTS, RADIATION PROTECTION, REACTOR ACCIDENTS, REACTOR COMPONENTS, REACTOR SAFETY, RECOMMENDATIONS, RISK ASSESSMENT, SAFETY ENGINEERING, STRESS CORROSION, STRESS INTENSITY FACTORS
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INIS VolumeINIS Volume
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