SYMPOSIA PAPER Published: 01 January 1994
STP15211S

Corrosion Performance of New Zircaloy-2-Based Alloys

Source

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.

Author Information

Rudling, P
ABB Atom, Västerås, Sweden
Mikes-Lindbäck, M
ABB Atom, Västerås, Sweden
Lethinen, B
Institute of Metals Research, Stockholm, Sweden
Andrén, H-O
Chalmers University of Technology, Göteborg, Sweden
Stiller, K
Chalmers University of Technology, Göteborg, Sweden
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Details
Developed by Committee: B10
Pages: 599–614
DOI: 10.1520/STP15211S
ISBN-EB: 978-0-8031-5286-1
ISBN-13: 978-0-8031-2011-2