Study of the cathodic process of the stainless steels corrosion in nitric acid. Modelling of the nitric acid reduction mechanism on stainless steels.
The materials (mainly stainless steels) aging of the spent nuclear fuel reprocessing plant is the focus of an important R&D activity at CEA. The control of this aging will be achieved by a better understanding the corrosion mechanisms the stainless steels in nitric acid (the oxidizing agent used in the reprocessing steps).
The aim of the PhD is to develop a model of the nitric acid reduction (the cathodic process involved in the corrosion mechanism) on a stainless steel. The PhD student will have to propose a reduction mechanism of nitric acid on a stainless steel and to quantify its kinetic. For that purpose an experimental work will be carried out by coupling electrochemical measurements (global and local) and chemical analyses (UV-visible-IR spectrometry...). Based on these experimental results, a model will be developed, which will be incorporated in the future in a more global model of the industrial equipments ageing of the plant.
The laboratory is specialized in the corrosion study in extreme conditions. It is composed of a very dynamic and motivated scientific team which has the habit to receive students.
Département de Physico-Chimie
Service de la Corrosion et du Comportement des Matériaux dans leur Environnement
Laboratoire d'Etude de la Corrosion Non Aqueuse
Centre : Saclay
Starting date : 01/10/2012