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EFC Working Party 4: Nuclear Corrosion

Welcome to the website of the Working Party on Nuclear Corrosion.

Current Activities & News


Henri Coriou Award 2020

The 2020 Henri Coriou Award for outstanding contributions to corrosion science and engineering in the nuclear field will be given to Ulla Ehrnstén (VTT Technical Research Centre of Finland Ltd., Finland). More details can be found under the "Awards' tab...


Upcoming Events and Workshops

  • WP 4 Fall Business Meeting
    The next Fall Business Meeting will take place online during the "virtual" EUROCORR 2020 in September (more details will follow later).
  • Joint session during the "virtual" EUROCORR 2020 on environmentally-assisted crack initiation
    6 - 10 September 2020
    Co-organised by WP 4, WP 5, WP 22 and Horizon 2020 project MEACTOS
    Flyer download


RECENT Publications

  • A short report on the LTC 2019 (19 - 21 November 2019, Nancy) is available now: 


Minutes from Recent WP 4 meetings



Get involved!

If you wish get involved with EFC and the activities of the Working Party please click here to register!


  • To provide links between European teams and EU-funded programs in the nuclear corrosion field, with an opening on to the world;
  • To initiate and stimulate opportunities of exchange of scientific and technical subjects related to nuclear corrosion, particularly on today's main nuclear research areas (waste systems, water reactors, generation IV and fusion reactors);
  • To promote corrosion science and technical developments through events such as seminars, workshops, publications, etc.

Nuclear Corrosion Awards


The following prizes are awarded by the WP 4 each year during the annual EUROCORR congress:


Henri Coriou Award

Coriou Medal 2020

The 2020 Henri Coriou Award for outstanding contributions to corrosion science and engineering in the nuclear field will be given to

Ulla Ehrnstén

VTT Technical Research Centre of Finland Ltd., Finland.

Short CV: Ulla Ehrnstén is working at VTT as a principal scientist in the field of nuclear materials and root cause analyses. Her more than 30 years’ research experience covers the performance of nuclear materials in different kinds of nuclear environments (BWRs, PWRs, VVERs, and GenIV systems). Root cause analyses for both, national and international customers has been key in her work since the early days at VTT. She is also teaching nuclear materials behaviour at the Aalto University and at Åbo Academy University, and at the STUK (the Finish nuclear safety authority) she is giving courses for newcomers in the nuclear field. She is the project manager and key scientist in several Finish research projects in the area of nuclear materials and was leader of VTT’s nuclear materials team. She is currently the project manager of the largest SAFIR2022 project ‘BRUTE’, which deals with the characterisation of reactor pressure vessel weld metal trepans removed from the Barsebäck 2 pressure vessel. She has authored more than 150 scientific articles, several hundred customer reports and three book chapters. She also participated in several EU-projects. She is a working group leader in the International Cooperative Group on Environmentally-Assisted Cracking, a scientific board member of Environmental Degradation and Fontevraud conferences and has been a steering committee member in several European energy/nuclear safety research alliances or councils.

Previous laureates

2019: Mr. Hans-Peter Seifert, Paul Scherrer Institute, Switzerland

2018: Dr. Gérard Pinard Legry, Consultant, France

2017: Prof. Hannu Hänninen, Aalto University, Finland

2016: Prof. David Tice, Wood, UK


Prize for the best Oral Presentation


The prize for the best oral presentation of the 2019 Nuclear Corrosion Session has been awarded to Annesha Das, Homi Bhabha National Institute, Mumbai, India (see photo) for the presentation ‘Effect of surface preparation on oxidation of austenitic SS 304L in high temperature water’; co-authors: Supratik Roychowdhury, Vivekanand Kain (BARC, Mumbai, India).
The paper can be downloaded here



‘Simulation of C-Ring, O-Ring and tensile ring specimens for Iodine induced SCC experiments on zirconium alloy’ by Kamila Wilczynska, CEA & INP Grenoble, France; co-authors: Matthew Bono (CEA, France), David Le Boulch (CEA, France), Marion Fregonese (INSA de Lyon, France), Valérie Chabretou (Framatome, France), Nathanael Mozzani (EdF, France), Martin Rautenberg (EdF, France).
The paper can be downloaded here


'Hydrogen trapping by irradiation-induced defects in 316L stainless steel', by Anne-Cécile Bach, CEA, France; co-authors: Frantz Martin (CEA, France), Cécilie Duhamel (MINES ParisTech, France), Stéphane Perrin (CEA, France), François Jomard (CNRS, France), Jérôme Crepin (MINES ParisTech, France).
The paper can be downloaded here


1st: 'Using tapered specimen to study the effect of hydrogen on SCC initiation in Alloy 182 under BWR condition', by Juxing Bai, Stefan Ritter, Hans-Peter Seifert (all Paul Scherrer Institut, Switzerland), and Sannakaisa Virtanen (University of Erlangen, Germany); 2nd: 'Pitting corrosion modelling by means of a stochastic cellular automata based model', by Cristian Felipe Pérez-Brokate (CEA , France), Dung di Caprio (CNRS - Chimie ParisTech, France), Damien Féron (CEA, France), Jacques de Lamare (CEA, France), and Annie Chaussé (Université d’Evry Val d’Essonne, France)


'In situ imaging of corrosion processes in nuclear fuel cladding', by Alice Laferrere, Robert Burrows (National Nuclear Laboratory, UK), Ron Clark, Carol Glover, Geraint Williams (University of Swansea, UK), Oliver Payton, Loren Picco (University of Bristol, UK)


'Intergranular oxidation of Alloy 600 exposed to simulated PWR primary water', by Jacqueline Caballero Hinostroza, Jérôme Crépin, Thierry Couvant and Cécilie Duhamel (Centre des Matériaux-Mines ParisTech and EDF R&D, France)

WP4 Poster Prize


The prize for the best poster presentation of the 2019 Nuclear Corrosion Session has been awarded to Sriharitha Rowthu, Paul Scherrer Institute, Switzerland (see photo) for the poster ‘Assessment of the Pt nanoparticle distribution on oxidized stainless steel surfaces by electrochemical techniques’; co-authors: Yu-Wei Yeh, Pascal V. Grundler, Stefan Ritter (all PSI, Switzerland), Reuben Holmes (NNL, UK).
The poster can be downloaded here


 ‘Investigation of the effects of irradiation on corrosive environments using in-situ electrochemical measurements during gamma-ray irradiation’ by Sato Tomonori, Japan Atomic Energy Agency, Japan; co-author: Fumiyoshi Ueno (JAEA, Japan).
The poster can be downloaded here


'Effect of dissolved oxygen on flow-accelerated corrosion in neutral and alkaline solutions', by Kazutoshi Fujiwara, Central Research Institute of Electric Power Industry - CRIEPI, Japan (see photo); co-authors: Kimitoshi Yoneda, Fumio Inada, (both CRIEPI, Japan).
The paper can be downloaded here


'High temperature oxidation of 9-12% Cr materials P91 and P92 in supercritical conditions (25 MPa, 600°C)', by Zuzana Skoumalová, Jaroslav Burda (ÚJV Řež a.s., CZ)


'Investigation of the temperature effect on the oxide layer formed on Alloy 182 in simulated PWR environment', by Renato de Mendonça, Rik-Wouter Bosch and Wouter Van Renterghem (CAPES Foundation, Ministry of Education, Brazil and SCK-CEN, Belgium)


'Effects of chloride and sulphate ions on the corrosion of Alloy 800 steam generator tube', by Fabio A. Mansur, Monica Maria A.M. Schvartzman, Pedro Henrique B.O. Nogueira, Marco Antonio Dutra Quinan (Centro de Desenvolvimento da Tecnologia Nuclear, Brazil)




EFC ‘Green Book’ Series No. 69: Nuclear Corrosion: Research, Progress and Challenges
Edited by Stefan Ritter
Based on the 50 years anniversary WS during EUROCORR 2017
To appear in August 2020

In 2017 the WP 4 marked its 50th anniversary with a workshop during EUROCORR comprising invited talks from renowned experts covering almost the entire range of nuclear corrosion topics. As a result of these workshop contributions, Nuclear Corrosion: Research, Progress and Challenges, is being published as part of the “Green Book” series of the EFC. This book builds upon the foundations of the very first book published in this series in 1989 (“Number 1 – A Working Party Report on Corrosion in the Nuclear Industry”). Since that publication, this WP has guided and supported the research and application of results in the broad field of nuclear corrosion. This newest volume (No. 69) starts with a recap of the history and (recent) activities of the WP 4 and provides an overview on the state-of-the-art of research in some of the most important areas of nuclear corrosion. The chapters covered include ageing phenomena in light water reactors, reprocessing plants, as well as in nuclear waste disposal, supercritical water and liquid metal systems. This book will be a vital resource for researchers and engineers working within the nuclear field in both academic and industrial environments.

  • NUCPERF 2009 - Long Term Performance of Cementitious Barriers and Reinforced Concrete in Nuclear Power Plants and Waste Management
    Edited by V. L'Hostis, R. Gens and C. Gallé
    RILEM Publications SARL (2009), ISBN: 978-2-35158-072-1



Previous Activities & Minutes from WP 4 Business Meetings


previous WP 4 Events

  • Nuclear Corrosion Web-Seminar
    30 June 2020
    This Web-seminar presented four very interesting talks from different nuclear corrosion research fields, which originally have been presented at the EUROCORR 2019 in Seville
  • Nuclear Corrosion Summer School 2019 - NuCoSS-19
    7 - 12 July 2019, Gozd Martuljek, Slovenia; EFC Event No. 440
    Organised by ZAG (B. Zajec, T. Kosec, A. Legat, N. Gartner, P. Močnik and M. Hren), PSI (S. Ritter), CEA (D. Féron and L. Martinelli), University of Manchester (F. Scenini, D. Engelberg and G. Burke) and co-organised by the MEACTOS project
  • Int. Winter School on 'Modelling of Corrosion'
    28 January - 1 February 2019, INSTN, CEA-Saclay, France; EFC Event
    Organised by D. Féron, L. Martinelli, C. Meis (CEA) & P.R. Dahoo (UVSQ)
  • Workshop on '50 years of Working Party Nuclear Corrosion'
    Special WS during EUROCORR 2017 & 20th ICC, 4 September 2017, in Prague, CZ
    Organised by D. Féron and S. Ritter

  • Conference on Flow Accelerated Corrosion - FAC 2016
    24 - 27 May 2016, in Lille, France
  • 6th Int. Workshop on Long-Term Prediction of Corrosion Damage in Nuclear Waste Systems (LTC 2016)
    9 - 12 May 2016, in Toronto, Canada

  • Spring School on 'Modelling of Corrosion for Nuclear Reactors'
    31 March - 4 April 2014, Saclay, France
    Organised by D. Féron (CEA-DEN), Ch. Gallé (CEA-MINOS), C. Meis (CEA-INSTN), B. Martin-Cabanas (EDF R&D) and J. Gale (Curtin Univ.)
  • 5th Int. Workshop on 'Long-Term Prediction of Corrosion Damage in Nuclear Waste Systems' (LongTermCorr 2013)
    6 - 10 October 2013, Asahikawa, Hokkaido, Japan; EFC Event No. 360
    Organised by JSCE, supported by WP 4, NUCE and JSME
  • Workshop on 'Radiation and Corrosion in Nuclear Power Plants'
    Special WS during EUROCORR 2013, 3 - 4 September 2013, Estoril, Portugal
    Organised by WP 4 in collaboration with Perform 60 (EU6), co-chaired by Th. Couvant (EDF), M. Konstantinovic (SCK-CEN) and W. Karlsen (VTT)
  • Winter School on 'Modelling of Corrosion'
    10 - 14 December 2012, Saclay, France (EFC Event No. 354)
    Organised by D. Féron (CEA-DEN), C. Meis (CEA-INSTN), Ph. Marcus (Chimie ParisTech) and J. Gale (Curtin Univ.)
  • NUCPERF 2012 Workshop on 'Long-Term Performance of Cementitious Barriers and Reinforced Concrete in Nuclear Power Plant and Radioactive Waste Storage and Disposal'
    12 - 15 November 2012, Cadarache, France (EFC Event No. 351, RILEM Event TC 226-CNM)
    Organised by V. L'Hostis, L. Chomat and A. Henry
  • Workshop on 'Occurrence and Mechanisms of Environmentally-Assisted Cracking'
    Special WS during EUROCORR 2012, 10 September 2012, Istanbul, Turkey
    Co-organised by WP 4, 5, 9, 13, 15 and 17
  • 2nd Int. Workshop on `Corrosion Monitoring in Nuclear Systems (Research and Applications)`
    Special WS during EUROCORR 2011, 6 September 2011, Stockholm, Sweden
    Organised by S. Ritter (PSI) and A. Molander (Studsvik) in collaboration with the ECG-COMON
  • International Workshop on 'Ageing-Management of Nuclear Power Plants and Waste Disposal Structures'
    7 - 10 November 2010, Toronto, Ontario, Canada; EFC Event No. 334
    Organised by Atomic Energy of Canada Limited (AECL) and CEA in conjuction with the WP 4
  • 4th International Workshop on 'Long Term Prediction of Corrosion Damage in Nuclear Waste Systems' (LongTermCorr 2010)
    28 June - 2 July 2010, Oud Sint-Jan Art and Congress Centre, Brugge, Belgium; EFC Event No. 329
    Organised by SCK-CEN and NIRAS/ONDRAF
    Website: www.tandfonline.com/toc/ycst20/46/2
  • International Workshop on 'Coupling Mechanisms to Improve Lifetime Prediction of LWRs'
    8 - 9 April 2010, Les Renardières, Moret-sur-Loing, France; EFC Event No. 331
    Organised by EDF R&D and MAI (T. Couvant and V. Bordier)
  • Jubilee Day: 'Stress Corrosion Cracking of Nickel-Base Alloys at CEA - Coriou Effect'
    26 - 27 January 2010, CEA Saclay, France; EFC Event No. 333
    Organised by CEA
    Proceedings available as EFC Green Book No. 67
  • Workshop on 'Corrosion Issues in Future Nuclear Systems'
    Special WS during EUROCORR 2009
    Organised by D. Féron (CEA) in collaboration with M. Schütze (WP 3) and NACE (TEG-224X)
  • Workshop on 'Simulation, Modelling and Life Prediction'
    Special WS during EUROCORR 2009
    Organised by R. Oltra, R.A. Cottis, Vankeerberghen, and P. Marcus
  • NUCPERF 2009 Workshop on 'Long-Term Performance of Cementitous Barriers and Reinforced Concrete in Nuclear Power Plants and Waste Management'
    EFC Event No. 317, 30 March - 2 April 2009, Cadarache, France
  • SACNUC Workshop on 'Sulphur Assisted Corrosion in Nuclear Disposal Systems'
    EFC Event No. 311, 21 - 23 October 2008, Brussels, Belgium
    Organised by SCK-CEN
  • Workshop on 'Corrosion Monitoring in Nuclear Systems'
    Special WS during EUROCORR 2007
    Organised by S. Ritter (PSI) and A. Molander (Studsvik) in collaboration with the ECG-COMON
    The contributions to this WS are available as EFC Green Book No. 56


Minutes from previous WP 4 meetings




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