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

G. Benamati, C. Fazio, H. Piankova, A. Rusanov

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Abstract

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. © 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)23 - 27
Number of pages5
JournalJournal of Nuclear Materials
Volume301
Issue number1
DOIs
Publication statusPublished - Feb 2002
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

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