Corrosion performance of new Zircaloy-2-based alloys
Book
·
OSTI ID:55674
- ABB Atom, Vaesteraas (Sweden)
- Inst. of Metals Research, Stockholm (Sweden)
- Chalmers Univ. of Technology, Goeteborg (Sweden). Dept. of Physics
A material development project was initiated to develop a new zirconium alloy, outside the ASTM specifications for Zircaloy-2 and Zircaloy-4, with optimized hydriding and corrosion properties for both boiling water reactors and pressurized water reactors. A number of different alloys were manufactured. These alloys were long-term corrosion tested in autoclaves at 400 C in steam. Also, a 520 C/24 h steam test was carried out. The zirconium metal microstructure and the chemistry of precipitates were characterized by analytical electron microscopy. The metal matrix chemistry was determined by atom probe analysis. The paper describes the correlations between corrosion material performance and zirconium alloy microstructure.
- OSTI ID:
- 55674
- Report Number(s):
- CONF-930611--; ISBN 0-8031-2011-7
- Country of Publication:
- United States
- Language:
- English
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