Oxidation behaviour of Zr-1.7Sn-2.3Hf alloy in nitrogen-containing steam at 1200 ºC

Lichun Zheng; Kazuya Hosoi; Shigeru Ueda; Xu Gao; Shin ya Kitamura; Yoshinao Kobayashi

doi:10.1016/j.corsci.2018.05.029

Oxidation behaviour of Zr-1.7Sn-2.3Hf alloy in nitrogen-containing steam at 1200 ºC

Lichun Zheng, Kazuya Hosoi, Shigeru Ueda, Xu Gao, Shin ya Kitamura, Yoshinao Kobayashi

IMRAM - Center for Mineral Processing and Metallurgy (CMPM)

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The effect of nitrogen on the oxidation of Zr-1.7Sn-2.3Hf alloy in steam at 1200 °C was studied with respect to the oxidation kinetics and the underlying mechanism. Oxidation of Zr-1.7Sn-2.3Hf in steam obeys parabolic rate law regardless of the presence of nitrogen. Nitrogen, however, linearly accelerates the oxidation of Zr-1.7Sn-2.3Hf when its partial pressure exceeds a critical value. The accelerated oxidation of Zr-1.7Sn-2.3Hf is attributed to the cracks in the oxide layer caused by nitrogen. To account for the cracks, a new mechanism involving nucleation, growth and re-oxidation of ZrN precipitates was proposed.

Original language	English
Pages (from-to)	363-373
Number of pages	11
Journal	Corrosion Science
Volume	140
DOIs	https://doi.org/10.1016/j.corsci.2018.05.029
Publication status	Published - 2018 Aug 1

Keywords

A. Tin
A. Zirconium
B. EPMA
C. Amorphous structures
C. High temperature corrosion
C. Kinetic parameters

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10.1016/j.corsci.2018.05.029

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@article{a8512d2a5c1d4cada8b1120f6cca146e,

title = "Oxidation behaviour of Zr-1.7Sn-2.3Hf alloy in nitrogen-containing steam at 1200 ºC",

abstract = "The effect of nitrogen on the oxidation of Zr-1.7Sn-2.3Hf alloy in steam at 1200 °C was studied with respect to the oxidation kinetics and the underlying mechanism. Oxidation of Zr-1.7Sn-2.3Hf in steam obeys parabolic rate law regardless of the presence of nitrogen. Nitrogen, however, linearly accelerates the oxidation of Zr-1.7Sn-2.3Hf when its partial pressure exceeds a critical value. The accelerated oxidation of Zr-1.7Sn-2.3Hf is attributed to the cracks in the oxide layer caused by nitrogen. To account for the cracks, a new mechanism involving nucleation, growth and re-oxidation of ZrN precipitates was proposed.",

keywords = "A. Tin, A. Zirconium, B. EPMA, C. Amorphous structures, C. High temperature corrosion, C. Kinetic parameters",

author = "Lichun Zheng and Kazuya Hosoi and Shigeru Ueda and Xu Gao and Kitamura, {Shin ya} and Yoshinao Kobayashi",

note = "Funding Information: This work is financially supported by the project “Accessibility for removal of fuel debris in BWR plant after severe accident” in The Centre of World Intelligence Project for Nuclear S&T and Human Resource Development, Japan Science and Technology Agency. Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = aug,

day = "1",

doi = "10.1016/j.corsci.2018.05.029",

language = "English",

volume = "140",

pages = "363--373",

journal = "Corrosion Science",

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T1 - Oxidation behaviour of Zr-1.7Sn-2.3Hf alloy in nitrogen-containing steam at 1200 ºC

AU - Zheng, Lichun

AU - Hosoi, Kazuya

AU - Ueda, Shigeru

AU - Gao, Xu

AU - Kitamura, Shin ya

AU - Kobayashi, Yoshinao

N1 - Funding Information: This work is financially supported by the project “Accessibility for removal of fuel debris in BWR plant after severe accident” in The Centre of World Intelligence Project for Nuclear S&T and Human Resource Development, Japan Science and Technology Agency. Publisher Copyright: © 2018 Elsevier Ltd

PY - 2018/8/1

Y1 - 2018/8/1

N2 - The effect of nitrogen on the oxidation of Zr-1.7Sn-2.3Hf alloy in steam at 1200 °C was studied with respect to the oxidation kinetics and the underlying mechanism. Oxidation of Zr-1.7Sn-2.3Hf in steam obeys parabolic rate law regardless of the presence of nitrogen. Nitrogen, however, linearly accelerates the oxidation of Zr-1.7Sn-2.3Hf when its partial pressure exceeds a critical value. The accelerated oxidation of Zr-1.7Sn-2.3Hf is attributed to the cracks in the oxide layer caused by nitrogen. To account for the cracks, a new mechanism involving nucleation, growth and re-oxidation of ZrN precipitates was proposed.

AB - The effect of nitrogen on the oxidation of Zr-1.7Sn-2.3Hf alloy in steam at 1200 °C was studied with respect to the oxidation kinetics and the underlying mechanism. Oxidation of Zr-1.7Sn-2.3Hf in steam obeys parabolic rate law regardless of the presence of nitrogen. Nitrogen, however, linearly accelerates the oxidation of Zr-1.7Sn-2.3Hf when its partial pressure exceeds a critical value. The accelerated oxidation of Zr-1.7Sn-2.3Hf is attributed to the cracks in the oxide layer caused by nitrogen. To account for the cracks, a new mechanism involving nucleation, growth and re-oxidation of ZrN precipitates was proposed.

KW - A. Tin

KW - A. Zirconium

KW - B. EPMA

KW - C. Amorphous structures

KW - C. High temperature corrosion

KW - C. Kinetic parameters

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DO - 10.1016/j.corsci.2018.05.029

M3 - Article

AN - SCOPUS:85047791283

SN - 0010-938X

VL - 140

SP - 363

EP - 373

JO - Corrosion Science

JF - Corrosion Science

ER -

Oxidation behaviour of Zr-1.7Sn-2.3Hf alloy in nitrogen-containing steam at 1200 ºC

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Keywords

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Oxidation behaviour of Zr-1.7Sn-2.3Hf alloy in nitrogen-containing steam at 1200 ºC

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Keywords

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Oxidation behaviour of Zr-1.7Sn-2.3Hf alloy in nitrogen-containing steam at 1200 ºC