Abstract:
A radiometric method based on the β-rays absorption for the investigation of corrosion reactions of some steels in different
experimental conditions was proposed. During the corrosion process it was observed that the intensity of the β-rays which
penetrated the iron ions layers in solution decreases, while the concentration of these ions which pass into aggressive medium
increases due to the anodic dissolution of the steel sample. A more exact kinetic parameter is proposed herein, namely the global
rate constant, to characterize the corrosion process.

Alexandru Cecal, Florica Ionica, Romeo Olariu, Gheorghe Nemtoi, Liliana Airinei