Corrosion tests were performed for T91, E911 and ODS (oxide dispersion strengthened) with surface treatment and Al-alloying by pulsed electron beam (GESA—GepulsteElektronenStrahlAnlage) in flowing lead bismuth eutectic (LBE) with
an oxygen content of 10
6
wt% at 550C for 2000 h. The result was that the surface treatment by GESA led to a faster growing multiphase oxide layer which was very homogenous in thickness. After exposure of specimens to LBE, the average oxide layer at the surface was 14–15lm thick for ODS, 19–20lm for E911 and 8–22lm for T91. No dissolution attack occurred. On the surface of the Al-alloyed specimens, thin protective alumina layers were observed at the places where
FeAl was formed by the GESA process, otherwise multiphase oxide layers or corrosion attack were observed.
2006 Elsevier B.V. All rights reserved.
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