Skip to main content

Treatment of long term irradiation embrittlement effects in RPV safety assessment

Objective

In view of the increasing age of the European NPPs and envisaged life time extensions up to an EOL of 80 years, there is a need for an improved understanding and prediction of RPV irradiation embrittlement effects connected with long term operation (LTO). Effects caused by high neutron fluences such as the possible formation of Late Blooming Phases and as yet unknown defects must be considered adequately in safety assessments. However, the surveillance database for long irradiation times (>20 years) and low neutron flux is sparse, which leads to uncertainties in the treatment of LTO irradiation effects. In this context microstructural data are essential for the understanding of the involved mechanisms. The proposed project aims at: 1) improved knowledge on LTO phenomena relevant for European reactors; 2) assessment and proposed improvements of prediction tools, codes and standards; 3) elaboration of best practice guidelines for irradiation embrittlement surveillance. The suggested scope of work is: i) Summary of boundary conditions for LTO and systematic (re)evaluation of the international prediction procedures of irradiation embrittlement ii) Generation of microstructural data of irradiated representative or original RPV materials; demonstration that damage models are (or not) consistent with the mechanisms of irradiation damage in the LTO (use of PERFORM60 prediction tools) iii) Investigation of specific LTO relevant phenomena like late blooming phases and flux effect from available results; role of Cu, Ni, Mn, P, Si under the aspect of LTO; iv) Correlation of microstructural data with mechanical properties and identification of the most important influencing factors (link with PERFORM60) v) Influence of high neutron fluences on fracture toughness curves shape vi) Comparison of embrittlement results from decommissioned plants with surveillance data vii) Elaboration of recommendations for RPV embrittlement surveillance under LTO conditions

Call for proposal

FP7-Fission-2009
See other projects for this call

Funding Scheme

CP-FP - Small or medium-scale focused research project

Coordinator

HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF EV
Address
Bautzner Landstrasse 400
01328 Dresden
Germany
Activity type
Research Organisations
EU contribution
€ 381 500
Administrative Contact
Eberhard Altstadt (Dr.)

Participants (16)

AREVA GMBH
Germany
EU contribution
€ 267 500
Address
Paul-gossen-strasse 100
91052 Erlangen
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Claudia Kraus (Ms.)
SERCO LTD
United Kingdom
EU contribution
€ 25 366,45
Address
Bartley Wood Business Park 16 Serco House
RG27 9UY Bartley Way Hook
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Jeremy Aldridge (Mr.)
MAGYAR TUDOMANYOS AKADEMIA KFKI ATOMENERGIA KUTATOINTEZET
Hungary
EU contribution
€ 223 500
Address
Konkoly Thege Miklos Ut 29-33
1525 Budapest
Activity type
Research Organisations
Administrative Contact
István Vidovszky (Dr.)
CENTRO DE INVESTIGACIONES ENERGETICAS, MEDIOAMBIENTALES Y TECNOLOGICAS-CIEMAT
Spain
EU contribution
€ 185 800
Address
Avenida Complutense 40
28040 Madrid
Activity type
Research Organisations
Administrative Contact
Miguel Angel Sanchez De Mora Chia (Ms.)
TECNATOM S.A.
Spain
EU contribution
€ 145 000
Address
Avenida Montes De Oca 1
28703 San Sebastian De Los Reyes - Madrid
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
José Manuel Mourín Valcárcel (Mr.)
UJV REZ, a. s.
Czechia
EU contribution
€ 282 500
Address
Hlavni 130, Rez
250 68 Husinec
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Miroslav Hrehor (Dr.)
STUDIECENTRUM VOOR KERNENERGIE / CENTRE D'ETUDE DE L'ENERGIE NUCLEAIRE
Belgium
EU contribution
€ 263 000
Address
Avenue Herrmann Debroux 40
1160 Bruxelles
Activity type
Research Organisations
Administrative Contact
Annick Keunen (Ms.)
TEKNOLOGIAN TUTKIMUSKESKUS VTT
Finland
EU contribution
€ 105 000
Address
Tekniikantie 4 A
02044 VTT Espoo
Activity type
Research Organisations
Administrative Contact
Liisa Alanen (Mr.)
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
France
EU contribution
€ 169 289
Address
Rue Michel Ange 3
75794 Paris
Activity type
Research Organisations
Administrative Contact
Monica Dietl (Ms.)
COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
France
EU contribution
€ 107 486
Address
Rue Leblanc 25
75015 Paris 15
Activity type
Research Organisations
Administrative Contact
Dominique Mazière (Mr.)
RINGHALS AB
Sweden
EU contribution
€ 47 500
Address
Hallands 13 Varberg 83
43022 Varobacka
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Lennart Eckegren (Ms.)
ROLLS-ROYCE POWER ENGINEERING PLC
United Kingdom
EU contribution
€ 114 500
Address
Moor Lane
DE24 8BJ Derby
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Peter Michael Ashwell (Dr.)
ELECTRICITE DE FRANCE
France
EU contribution
€ 112 500
Address
Avenue De Wagram 22
75008 Paris 08
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Christine Patte (Ms.)
THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD
United Kingdom
EU contribution
€ 90 500
Address
Wellington Square University Offices
OX1 2JD Oxford
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Stephen Conway (Dr.)
JRC -JOINT RESEARCH CENTRE- EUROPEAN COMMISSION
Belgium
EU contribution
€ 25 000
Address
Rue De La Loi 200
1049 Brussels
Activity type
Research Organisations
Administrative Contact
David Walker (Ms.)
ENERGY, SAFETY AND RISK CONSULTANTS(UK) LIMITED
United Kingdom
EU contribution
€ 75 633,55
Address
Booths Park Chelford Road
WA16 8QZ Knutsford
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Ian O'donnell (Mr.)