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NOMATEN ONLINE-SEMINAR September 24: Experimental approach to the effects of irradiation on the corrosion rate of zirconium alloys

Date

NOMATEN Online Seminar

Location: gotomeeting room - https://meet.goto.com/NCBJmeetings/nomaten-seminar

Seminar date: September 24th, 2024, 1 PM

 

Experimental approach to the effects of irradiation on the corrosion rate of zirconium alloys

 

Speaker name: Dr. Marc Tupin

Speaker affiliation: CEA Saclay, France

Abstract:

Understanding fuel rod cladding corrosion processes remains a challenge in terms of the impact of alloying elements on the oxidation rate. The corrosion mechanisms of zirconium alloys - Zircaloy-4 and M5 - are not yet fully understood, due to the complexity of these materials, the environment and ionizing radiation conditions. The aim of our research over the last decade has been to decouple and study separately the influence of radiation damage in the metal from the effects induced in the oxide layer and the impact of radiolysis of water. The most remarkable finding is that the effects of radiation on the corrosion rate of Zircaloy-4 are negative overall, whereas the M5 alloy shows better behavior after ion irradiation. The results and prospects will be discussed in terms of mechanism and modeling.

Bio:

Dr. Marc Tupin is the Research Director at the Department of Materials and Physical Chemistry Research (DRMP) at CEA Saclay, part of the Université Paris-Saclay. Dr. Tupin holds a PhD in Physical Chemistry from Grenoble University, with extensive experience in the field of materials science. Dr. Tupin’s research is centered on understanding the complex mechanisms of corrosion, especially of zirconium alloy, the effects of irradiation on materials, and electrochemistry measurements applied to corrosion. Dr. Tupin has a particular focus on hydrogen embrittlement in zirconium alloys, which are critical materials in the nuclear industry. The main project is “GEN II - GEN III advanced cladding” which aims to develop and optimize materials for improved performance and safety in nuclear reactors



This project has received funding from the European Union Horizon 2020 research and innovation
programme under grant agreement No 857470 and from European Regional Development Fund
via Foundation for Polish Science International Research Agenda PLUS programme grant
No MAB PLUS/2018/8.
Poland
The project is co-financed from the state budget within the framework of the undertaking of the Minister of Science and Higher Education "Support for the activities of Centers of Excellence established under Horizon 2020".

Grant: 5 143 237,70 EUR
Total value: 29 971 365,00 EUR
Date of signing the funding agreement: December 2023

The purpose of the undertaking is to support entities of the higher education and science system that have received funding from the European Union budget in the competition H2020-WIDESPREAD-2018-2020/WIDESPREAD-01-2018-2019: Teaming Phase 2. in the preparation, implementation and updating of activities, maintenance of material resources necessary for carrying out activities, acquisition and modernization of scientific and research apparatus, maintenance and development of personnel potential necessary for the implementation of activities, and dissemination of the results of scientific activities.