Application of Mossbauer Spectroscopy to Studying Steel Corrosion at Nuclear Power Plants

摘要

Methodical aspects of applying Mossbauer 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 Mossbauer spectra of surface layers of steels at grazing incidence of the Mossbauer gamma-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.