Workshop on the modeling of intergranular oxidation of nickel alloys used in PWRs - 4-5 June 2015


Nickel alloys with limited chromium content (<20%) suffer intergranular stress corrosion cracking (IGSCC) when they are exposed to the primary water of pressurized water reactors (PWRs). 

According to IGSCC test results, intergranular oxidation kinetics plays a major role in IGSCC mechanisms. Oxide examinations suggest that oxidation is strongly depending on environmental conditions (temperature, pH, potential), metallurgical (chromium content, grain boundaries) and mechanical parameters (dislocations, stress). 

The Workshop will address oxidation, with emphasis on oxide penetration at grain boundaries, where IGSCC occurs. Experimental and modeling approaches will be discussed, in order to progress in the understanding and prediction of IGSCC. 


This Workshop is the first meeting organized in the frame of the French “Groupement d’Intérêt Scientifique” (GIS) devoted to Stress Corrosion Cracking. 





Material Ageing Institute 
EDF R&D - Les Renardières 
Moret-sur-Loing, France 




Organizers: Philippe Marcus (Chimie ParisTech - CNRS) and Thierry Couvant (EDF) 



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