Fluoridation and oxidation characteristics of JLF-1 and NIFS-HEAT-2 low-activation structural materials

Fluoridation and oxidation of JLF-1 (Fe–9Cr–2W–0.1C) and NIFS-HEAT-2 (V–4Cr–4Ti) were examined under various corrosion conditions, such as Flibe (2LiF + BeF 2) molten salt at 823 K for 2003 h, H 2O–47%HF solution at RT for 2 min, and He–(0–1%)HF gas mixture containing moisture and O 2 gas impurities...

Full description

Saved in:
Bibliographic Details
Published in:Journal of nuclear materials 2009-04, Vol.386, p.716-719
Main Authors: Nagasaka, Takuya, Kondo, Masatoshi, Muroga, Takeo, Noda, Nobuaki, Sagara, Akio, Motojima, Osamu, Suzuki, Akihiro, Terai, Takayuki
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Installations for energy generation and conversion: thermal and electrical energy
Nuclear fuels
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Fluoridation and oxidation of JLF-1 (Fe–9Cr–2W–0.1C) and NIFS-HEAT-2 (V–4Cr–4Ti) were examined under various corrosion conditions, such as Flibe (2LiF + BeF 2) molten salt at 823 K for 2003 h, H 2O–47%HF solution at RT for 2 min, and He–(0–1%)HF gas mixture containing moisture and O 2 gas impurities at 823 K for 2.5–100 h. Oxidation dominated fluoridation under all test conditions, even when the fluoridation agent, the F atoms in HF, was 16× more plentiful than the oxidation agent, O atoms in H 2O, and O 2. Corrosion products were mainly considered as Cr 2O 3, while fluoride was indicated in a very limited surface region. JLF-1 exhibited better corrosion resistance in He–HF gas mixture tests than NIFS-HEAT-2.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2008.12.296