Title: Material Characterisation and Selection for the International Research Project PRIMAVERA
Authors: CHERNOBAEVA ANNASHTROMBAH JKRJUKOV AERAK D.PLATONOV PNIKOLAEV JKRASIKOV E.DEBARBERIS LUIGIKOHOPAA JyrkiVALO M.VODENICHAROV Nicola
Citation: INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING vol. 84 p. 151-158
Publisher: ELSEVIER SCI LTD
Publication Year: 2007
JRC Publication N°: JRC34106
ISSN: 0308-0161
URI: http://dx.doi.org/10.1016/j.ijpvp.2006.09.016
http://publications.jrc.ec.europa.eu/repository/handle/JRC34106
DOI: 10.1016/j.ijpvp.2006.09.016
Type: Articles in Journals
Abstract: The international research project "PRIMAVERA" is aiming at the development of a physically validated prediction model for transition temperature shift dependence ( ) of VVER-400 weld metals versus neutron fluence after reactor pressure vessel annealing. RRC «Kurchatov institute» (Russia), Fortum Nuclear Services and VTT Manufacturing Technology (Finland), JRC EC (The Netherlands) and IMS (Bulgaria) participate of "PRIMAVERA" project. The reactor pressure vessel of VVER type has several ring welds between forgings and are characterised large overall dimensions and related structure heterogeneity and mechanical properties variations. The weld metal results to be a mild low-alloy steel of pearlite class with rather complex structure depending on chemical composition, manufacturing technology and heat treatment. The selection of the weld sample is crucial for the success of the project and finally a critical weld with high phosphorus contents, weld 501 manufactured at Izhora plant following standard VVER-440/230 weld technology, has been identified and selected for the project.
JRC Institute:Institute for Energy and Transport

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