Corrosion of steels with surface treatment and Al-alloying by GESA exposed in lead–bismuth

Abstract 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 550 °C 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 14–15 μm thick for ODS, 19–20 μm for E911 and 8–22 μm 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.

[1]  A. Weisenburger,et al.  Behavior of steels in flowing liquid PbBi eutectic alloy at 420–600 °C after 4000–7200 h , 2004 .

[2]  H. Bluhm,et al.  Pulsed electron beam facility (GESA) for surface treatment of materials , 1996 .

[3]  A. Terlain,et al.  Influence of Zn as a spallation product on the behaviour of martensitic steel T91 and austenitic steel 316L in liquid Pb-Bi , 2004 .

[4]  C. Fazio,et al.  Compatibility tests of steels in flowing liquid lead–bismuth , 2001 .

[5]  S. Saito,et al.  Corrosion behavior of Al-surface-treated steels in liquid Pb-Bi in a pot , 2004 .

[6]  G. Benamati,et al.  Behaviour of materials for accelerator driven systems in stagnant molten lead , 2000 .

[7]  G. Benamati,et al.  Temperature effect on the corrosion mechanism of austenitic and martensitic steels in lead–bismuth , 2002 .

[8]  A. Rusanov,et al.  Corrosion behavior of steels in flowing lead–bismuth , 2001 .

[9]  Frank Zimmermann,et al.  Results of steel corrosion tests in flowing liquid Pb/Bi at 420-600 °C after 2000 h , 2002 .

[10]  Ning Li,et al.  Corrosion Behaviors of US Steels in Flowing Lead-Bismuth Eutectic (LBE) , 2005 .

[11]  F. J. Martin,et al.  Oxide layer stability in lead-bismuth at high temperature , 2004 .

[12]  A. Gessi,et al.  Corrosion behaviour of stainless steels in flowing LBE at low and high oxygen concentration , 2004 .

[13]  A. Weisenburger,et al.  Effect of oxygen concentration and temperature on compatibility of ODS steel with liquid, Stagnant Pb45Bi55 , 2004 .

[14]  Alberto Passerone,et al.  Corrosion behaviour of steels in lead–bismuth at 823 K , 2004 .

[15]  F. Balbaud-Célérier,et al.  Corrosion behaviour of aluminized martensitic and austenitic steels in liquid Pb-Bi , 2004 .

[16]  Alfons Weisenburger,et al.  Surface alloying by pulsed intense electron beams , 2005 .

[17]  Carlo Rubbia,et al.  Conceptual design of a fast neutron operated high power energy amplifier , 1995 .

[18]  Frank Zimmermann,et al.  Investigation on oxygen controlled liquid lead corrosion of surface treated steels , 2000 .

[19]  D. Gómez-Briceño,et al.  Corrosion of stainless steels in lead-bismuth eutectic up to 600 °C , 2004 .

[20]  H. Borgstedt,et al.  Liquid Metal Systems , 1995 .

[21]  G. Mueller,et al.  Corrosion investigations of steels in flowing lead at 400°C and 550°C , 2001 .