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Abstract:
Corrosion in static liquid lead-bismuth eutectic (LBE) with varying oxygen content is investigated at 550 degrees C on an alumina-forming duplex steel which contains both austenite and ferrite phases. The duration of the tests is about 1000 h. For oxygen concentration ranging from 10-12 to 10-8 % by mass, the steel shows preferential nickel dissolution and LBE penetration. The degradation of the ferrite is delayed in contrast to the austenitic part of the duplex microstructure. At 10-6 % oxygen, the steel is protected from LBE attack due to the formation of a thin oxide layer rich in aluminum. The precipitation of NiAl in the steel does not compromise the formation of Alrich oxide at this oxygen concentration.
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CORROSION SCIENCE
ISSN: 0010-938X
Year: 2021
Volume: 189
8 . 3 0 0
JCR@2022
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:116
JCR Journal Grade:1
Cited Count:
WoS CC Cited Count: 19
SCOPUS Cited Count: 26
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0