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Steam oxidation of Cr-coated Sn-containing Zircaloy solid rod at 1000 °C

Junkai Liu, Zhexin Cui, Zhe Hao, Dayan Ma, Junqiang Lu, Yanguang Cui, Chong Li, Wenbo Liu, Shijing Xie, Pengfei Hu, Ping Huang, Guanghai Bai (+1 others)
2021

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https://web.archive.org/web/20230119210241/https://publikationen.bibliothek.kit.edu/1000135986/150077683

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In this study, the steam oxidation behavior of Cr-coated Zry-4 alloy at 1000 • C and the various interesting phenomena observed during the oxidation process were investigated. During oxidation, Sn in the Zry-4 substrate diffused into the coating and precipitated in the Cr 2 O 3 scale. The Kirkendall effect of these Sn-containing precipitates then generated microcavities. Furthermore, the outward diffusion behavior of Zr and the selective oxidation mechanism of the Zr particles were studied.
more » ... s detected at the Cr 2 O 3 /Cr interface result mainly from vacancy condensation. The amorphization of Cr 2 O 3 was also observed adjacent to the voids, and the amorphization mechanism was discussed.
doi:10.5445/ir/1000135986 fatcat:jel523uhjbay7iek4gixgp7fs4
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Junkai Liu, Zhexin Cui, Zhe Hao, Dayan Ma, Junqiang Lu, Yanguang Cui, Chong Li, Wenbo Liu, Shijing Xie, Pengfei Hu, Ping Huang, Guanghai Bai, Di Yun. "Steam oxidation of Cr-coated Sn-containing Zircaloy solid rod at 1000 °C." (2021)