N. A. Kazakovtseva, M. A. Maikov, E. V. Nikitina
ABSTRACT
The high-temperature corrosion of 12Cr18Ni10Тi steel in the melt of lithium and potassium chlorides was investigated, with addition of neodymium trichlorides at an operating temperature of 773 K. The NdCl3 concentration varied from 0.2 to 5 mol %. In this study, neodymium is an analog of plutonium. The composition of the electrolyte was close to the composition of real electrolytes used for processing nitride spent nuclear fuel (SNF). The main method of investigation is gravimetric, with aging of the steel sample in the melt for 1–24 hours. The atomic-adjective and micro-XFray spectral analysis methods were also used.
KEYWORDS:
corrosion, neodymium, gravimetry, melts