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; Di Yun

doi:10.1016/j.corsci.2021.109682

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
, Di Yun

Xi'an Jiaotong University
Karlsruhe Institute of Technology
Shanghai Nuclear Engineering Research and Design Institute
Shanghai University
Suzhou Nuclear Power Research Institute

科研成果: 期刊稿件 › 文章 › 同行评审

60 引用（Scopus）

摘要

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 Cr₂O₃ 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. Voids detected at the Cr₂O₃/Cr interface result mainly from vacancy condensation. The amorphization of Cr₂O₃ was also observed adjacent to the voids, and the amorphization mechanism was discussed.

源语言	英语
文章编号	109682
期刊	Corrosion Science
卷	190
DOI	https://doi.org/10.1016/j.corsci.2021.109682
出版状态	已出版 - 9月 2021

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10.1016/j.corsci.2021.109682

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@article{46aae7f1871f46f6956784e528235e94,

title = "Steam oxidation of Cr-coated Sn-containing Zircaloy solid rod at 1000 °C",

abstract = "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 Cr2O3 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. Voids detected at the Cr2O3/Cr interface result mainly from vacancy condensation. The amorphization of Cr2O3 was also observed adjacent to the voids, and the amorphization mechanism was discussed.",

keywords = "Amorphous structures, Cr coating, High-temperature steam oxidation, Interface void, Precipitate",

author = "Junkai Liu and Zhexin Cui and Zhe Hao and Dayan Ma and Junqiang Lu and Yanguang Cui and Chong Li and Wenbo Liu and Shijing Xie and Pengfei Hu and Ping Huang and Guanghai Bai and Di Yun",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = sep,

doi = "10.1016/j.corsci.2021.109682",

language = "英语",

volume = "190",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Steam oxidation of Cr-coated Sn-containing Zircaloy solid rod at 1000 °C

AU - Liu, Junkai

AU - Cui, Zhexin

AU - Hao, Zhe

AU - Ma, Dayan

AU - Lu, Junqiang

AU - Cui, Yanguang

AU - Li, Chong

AU - Liu, Wenbo

AU - Xie, Shijing

AU - Hu, Pengfei

AU - Huang, Ping

AU - Bai, Guanghai

AU - Yun, Di

PY - 2021/9

Y1 - 2021/9

N2 - 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 Cr2O3 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. Voids detected at the Cr2O3/Cr interface result mainly from vacancy condensation. The amorphization of Cr2O3 was also observed adjacent to the voids, and the amorphization mechanism was discussed.

AB - 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 Cr2O3 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. Voids detected at the Cr2O3/Cr interface result mainly from vacancy condensation. The amorphization of Cr2O3 was also observed adjacent to the voids, and the amorphization mechanism was discussed.

KW - Amorphous structures

KW - Cr coating

KW - High-temperature steam oxidation

KW - Interface void

KW - Precipitate

UR - https://www.scopus.com/pages/publications/85109574584

U2 - 10.1016/j.corsci.2021.109682

DO - 10.1016/j.corsci.2021.109682

M3 - 文章

AN - SCOPUS:85109574584

SN - 0010-938X

VL - 190

JO - Corrosion Science

JF - Corrosion Science

M1 - 109682

ER -

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

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