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Irradiation effects on the evolution of the microstructure, properties and residual stresses in the heat affected zone of stainless steel welds

Project information

Grant agreement ID: FIKS-CT-2000-00103

  • Start date

    1 September 2000

  • End date

    30 April 2005

Funded under:

FP5-EAECTP C

  • Overall budget:

    € 1 739 960

  • EU contribution

    € 660 631

Coordinated by:

NUCLEAR RESEARCH & CONSULTANCY GROUP

Netherlands

Objective

Cracking in the heat-affected zone of core shroud welds due to stress corrosion is one of the life limiting phenomena in boiling water reactors. The susceptibility of weld material to stress corrosion cracking is increased by the presence of residual stresses and neutron irradiation. The objective of this project is to assess the correlation of the weld residual stresses and microstructure / microchemistry after irradiation and the specific stress corrosion resistance of the core shroud weld and deduce indications on the mechanism of the cracking process. Representative test welds will be produced that will be irradiated in materials test reactors to relevant neutron dose levels. Moreover, an in-service weld material will be used from a decommissioned reactor. The various irradiated materials will be examined for weld residual stresses, corrosion and mechanical behaviour and microstructure/microchemistry by the different partners.

Coordinator

NUCLEAR RESEARCH & CONSULTANCY GROUP

Address

Westerduinweg 3
Po Box 25 Petten

Netherlands

Participants (5)

BELGIAN NUCLEAR RESEARCH CENTRE

Belgium

CENTRO DE INVESTIGACIONES ENERGETICAS, MEDIAMBIENTALES Y TECNOLOGICAS

Spain

COMMISSION OF THE EUROPEAN COMMUNITIES

Netherlands

FRAMATOME ANP GMBH

Germany

PAUL SCHERRER INSTITUT

Switzerland

Project information

Grant agreement ID: FIKS-CT-2000-00103

  • Start date

    1 September 2000

  • End date

    30 April 2005

Funded under:

FP5-EAECTP C

  • Overall budget:

    € 1 739 960

  • EU contribution

    € 660 631

Coordinated by:

NUCLEAR RESEARCH & CONSULTANCY GROUP

Netherlands