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Corrosion susceptibility comparison of EUROFER steel in contact two lithium silicate breeders

Authors
Journal
Fusion Engineering and Design
0920-3796
Publisher
Elsevier
Identifiers
DOI: 10.1016/j.fusengdes.2013.12.043
Keywords
  • Eurofer
  • Corrosion
  • Lithium Silicates

Abstract

Abstract Corrosion susceptibility of EUROFER steel in contact with two ceramic breeders with different lithium content was evaluated at the representative temperature of operation (550°C). As a first approach, corrosion tests were performed in vacuum atmosphere up to 2880h. Although the weight change was negligible during the tests, the results showed corrosion attack producing a double oxide corrosion layer with different thickness depending on the ceramic breeder. Nevertheless, in both beds the composition of corrosion products was similar. The microstructural studies by optical and SEM/EDX revealed that the corrosion mechanism could be attributed to exfoliation process.

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