Temperature effect on the corrosion mechanism of austenitic and martensitic steels in lead–bismuth

Autor: A Rusanov, H Piankova, G Benamati, C Fazio
Rok vydání: 2002
Předmět:
Zdroj: Journal of Nuclear Materials. 301:23-27
ISSN: 0022-3115
DOI: 10.1016/s0022-3115(01)00723-1
Popis: Compatibility tests on the austenitic AISI 316L and the martensitic MANET II steels in stagnant PbBi were performed at 573, 673 and 823 K with exposures up to 5000 h. The change of the corrosion mechanism with increasing temperature has been evaluated. The results showed that at 573 and 673 K a thin oxide layer growth on the surface of both steels. By increasing the temperature to 823 K both types of steels were attacked by the liquid metal and dissolution of the steel alloying elements has been observed. The herein-reported experimental activities were performed in collaboration with the IPPE of Obninsk, where preliminary dynamic tests were performed in the experimental facility CU-2. The Russian ferritic–martensitic steel EP823 has been exposed to flowing PbBi at 623, 723 and 823 K for 700 h. After 700 h of testing, the surface of the EP823 samples showed for the three temperatures a compact oxide layer.
Databáze: OpenAIRE