Application of Mössbauer spectroscopy to studying steel corrosion at nuclear power plants

Methodical aspects of applying Mössbauer spectroscopy to studying corrosion in ultrathin layers of steels in contact with coolant water of nuclear power installations are considered. A new procedure is developed for measuring Mössbauer spectra of surface layers of steels at grazing incidence of the Mössbauer γ-radiation on the surface of pearlite and austenite steels. New data are obtained on the phase composition of nanometer-thick surface layers of “metallic” steel samples. Corrosion products occurring in pipelines such as the pressurizer pipe and steam generator tubing of nuclear power plants with water-cooled water-moderated reactors are studied.