Oxidation behavior of Zr 9 S 2 precipitates in Zr-0.8Sn-1.0Nb-0.3Fe-0.1Cr- x S alloys
Source abstract
Abstract
Abstract Effect of trace sulphur (16–540 μg/g, S) on the corrosion resistance of zirconium alloys and oxidation behavior of Zr 9 S 2 precipitates were investigated. Results show that S dissolved in α-Zr is among 63 ∼170 μg/g. Layered Zr 9 S 2 particles precipitate when S addition reaches 170 μg/g. Zr 9 S 2 precipitates oxidize easily and contribute to humps in the oxide films. Oxidation of Zr 9 S 2 precipitates causes regular shaped cavities with nanometer size grains at the inner surfaces of oxide films. The presence of cauliflower-shaped humps at the inner surfaces of oxide films is also discussed.
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Research context
OpenAlex topics: Nuclear Materials and Properties · Fusion materials and technologies · Hydrogen embrittlement and corrosion behaviors in metals
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