Topic
Zirconium alloy
About: Zirconium alloy is a research topic. Over the lifetime, 6548 publications have been published within this topic receiving 78954 citations. The topic is also known as: zircaloy.
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TL;DR: In this article, the results of a first test series with Zircaloy-4 as reference material, Framatome Duplex cladding, M5® and the Russian E110 alloy are presented.
Abstract: The oxidation kinetics of the classic pressurized water reactors (PWR) cladding alloy Zircaloy-4 has been extensively investigated over a wide temperature range. In recent years, new cladding alloys optimized for longer operation and higher burn-up are being increasingly used in Western light water reactors (LWR). These alloys were naturally optimized regarding their corrosion behavior for operational conditions. The publicly available data on high temperature oxidation of the various cladding materials are very scarce. This paper presents the results of a first test series with Zircaloy-4 as reference material, Framatome Duplex cladding, Framatome M5® and the Russian E110 alloy. The first two are Zr–Sn, the latter two Zr–Nb alloys. All materials were investigated in isothermal and transient tests in a thermal balance under argon–oxygen atmosphere. Strong and varying differences (up to 500%) of oxidation kinetics between the alloys were found till 1000 °C, where the breakaway effect plays a role. Smaller but still significant differences (20–30%) were observed at higher temperatures. Generally, the advanced cladding alloys here studied show also a favorable behavior at high temperatures during accident scenarios.
47 citations
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TL;DR: In this article, a specific study was carried out to measure the influence of texture on the behavior of Zircaloy-4 under iodine-induced stress corrosion cracking, and the results showed that texture is a more important parameter than chemical composition, on condition that this composition remains within the ASTM specification.
47 citations
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TL;DR: In this paper, the incorporation of precipitates β-Nb and Zr(Fe, V) 2 into the oxide films formed on advanced Zr-based alloys (Zr 1%Nb, Zr 0.5%Sn, 0.6%Fe 0.3%V) was studied by transmission electron microscopy, on cross-sectional thin foils.
47 citations
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04 Sep 1973
TL;DR: In this paper, the creep strength of a tube formed from a "Zircaloy" material is improved by prefacing the final cold working step of the manufacturing procedure by heating the material to the beta-range and then cooling to room temperature.
Abstract: The creep strength of a tube formed from a "Zircaloy" material is improved by prefacing the final cold working step of the manufacturing procedure by heating the material to the beta -range and then cooling to room temperature.
47 citations