Results of steel corrosion tests in flowing liquid Pb/Bi

at 420 600 C after 2000 h

G. Müller a*, A. Heinzel a, G. Schumacher a, A. Weisenburger a, F. Zimmermann a,

J. Konys b, V. Engelko c, A. Rusanov d, V. Markov e

a Forschungszentrum Karlsruhe GmbH, IHM, Postfach 3640, 76021 Karlsruhe, Germany

b Forschungszentrum Karlsruhe GmbH, IMF III, Postfach 3640, 76021 Karlsruhe, Germany

c Efremov Institute of Electrophysical Apparatus, 189631 St. Petersburg, Russia

d IPPE, Bondarenko Square 1, 249020 Obninsk, Kaluga Region, Russia

e CRISM "PROMETEY", 193015 St. Petersburg, Russia

*Corresponding author. Tel.: +49-7247 82 4669; fax: +49-7247 82 4874; e-mail: georg.mueller@ihm.fzk.de

Abstract

Corrosion tests were carried out on austenitic AISI 316L and 1.4970 steel and on MANET steel up to 2000 h of exposure to flowing (up to 2 m/s) Pb/Bi. The concentration of oxygen in the liquid alloy was controlled at 10-6 wt%. Specimens consisted of tube and rod sections in original state and after alloying of Al into the surface. After 2000 h of exposure at 420 and 550 C the specimen surfaces were covered with an intact oxide layer which provided a good protection against corrosion attack of the liquid Pb/Bi alloy. After the same time corrosion attack at 600 C was severe at the original AISI 316L steel specimens. The alloyed specimens containing FeAl on the surface of the alloyed layer still maintained an intact oxide layer with good corrosion protection up to 600 C.

 

 

Als Vortrag:

Pb / Bi International Workshop bei ENEA, Brasimore, Italien, 18.-20. April 2001