Corrosion of Zr-xTi-yNb alloys in concentrated nitric acid at elevated temperature

Xian Zong Wang; Yi Wang; Yi Xin Wang; Xinyu Lu; Weijia Gong; Zhongkui Li; Jinshan Li

doi:10.1016/j.corsci.2023.111226

Corrosion of Zr-xTi-yNb alloys in concentrated nitric acid at elevated temperature

Xian Zong Wang, Yi Wang, Yi Xin Wang, Xinyu Lu, Weijia Gong, Zhongkui Li, Jinshan Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

11 Scopus citations

Abstract

Corrosion-resistant alloys are essential for reprocessing the spent nuclear fuel in concentrated HNO₃ at elevated temperature. Herein, 14 Zr-xTi-yNb alloys were fabricated to reveal the effects of Ti and Nb on their long-term corrosion behaviors. Zr-1.0Ti-0.5 Nb alloy achieves a prominently low corrosion rate of < 0.0003 mm/a in 12 M HNO₃ at 95 ℃ for 1000 h, contributed to the moderate Ti which strengthens the passivation and Nb which enhances the stability of the protective oxides. This work offers new insights into Zr alloys’ design and their corrosion mechanism for reprocessing dissolver of spent nuclear fuel.

Original language	English
Article number	111226
Journal	Corrosion Science
Volume	219
DOIs	https://doi.org/10.1016/j.corsci.2023.111226
State	Published - 15 Jul 2023

Keywords

Corrosion
Nitric acid
Reprocessing dissolver
Spent nuclear fuel
Ti and Nb alloying
Zirconium alloys

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10.1016/j.corsci.2023.111226

Cite this

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title = "Corrosion of Zr-xTi-yNb alloys in concentrated nitric acid at elevated temperature",

abstract = "Corrosion-resistant alloys are essential for reprocessing the spent nuclear fuel in concentrated HNO3 at elevated temperature. Herein, 14 Zr-xTi-yNb alloys were fabricated to reveal the effects of Ti and Nb on their long-term corrosion behaviors. Zr-1.0Ti-0.5 Nb alloy achieves a prominently low corrosion rate of < 0.0003 mm/a in 12 M HNO3 at 95 ℃ for 1000 h, contributed to the moderate Ti which strengthens the passivation and Nb which enhances the stability of the protective oxides. This work offers new insights into Zr alloys{\textquoteright} design and their corrosion mechanism for reprocessing dissolver of spent nuclear fuel.",

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author = "Wang, {Xian Zong} and Yi Wang and Wang, {Yi Xin} and Xinyu Lu and Weijia Gong and Zhongkui Li and Jinshan Li",

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T1 - Corrosion of Zr-xTi-yNb alloys in concentrated nitric acid at elevated temperature

AU - Wang, Xian Zong

AU - Wang, Yi

AU - Wang, Yi Xin

AU - Lu, Xinyu

AU - Gong, Weijia

AU - Li, Zhongkui

AU - Li, Jinshan

PY - 2023/7/15

Y1 - 2023/7/15

N2 - Corrosion-resistant alloys are essential for reprocessing the spent nuclear fuel in concentrated HNO3 at elevated temperature. Herein, 14 Zr-xTi-yNb alloys were fabricated to reveal the effects of Ti and Nb on their long-term corrosion behaviors. Zr-1.0Ti-0.5 Nb alloy achieves a prominently low corrosion rate of < 0.0003 mm/a in 12 M HNO3 at 95 ℃ for 1000 h, contributed to the moderate Ti which strengthens the passivation and Nb which enhances the stability of the protective oxides. This work offers new insights into Zr alloys’ design and their corrosion mechanism for reprocessing dissolver of spent nuclear fuel.

AB - Corrosion-resistant alloys are essential for reprocessing the spent nuclear fuel in concentrated HNO3 at elevated temperature. Herein, 14 Zr-xTi-yNb alloys were fabricated to reveal the effects of Ti and Nb on their long-term corrosion behaviors. Zr-1.0Ti-0.5 Nb alloy achieves a prominently low corrosion rate of < 0.0003 mm/a in 12 M HNO3 at 95 ℃ for 1000 h, contributed to the moderate Ti which strengthens the passivation and Nb which enhances the stability of the protective oxides. This work offers new insights into Zr alloys’ design and their corrosion mechanism for reprocessing dissolver of spent nuclear fuel.

KW - Corrosion

KW - Nitric acid

KW - Reprocessing dissolver

KW - Spent nuclear fuel

KW - Ti and Nb alloying

KW - Zirconium alloys

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DO - 10.1016/j.corsci.2023.111226

M3 - 文章

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SN - 0010-938X

VL - 219

JO - Corrosion Science

JF - Corrosion Science

M1 - 111226

ER -

Corrosion of Zr-xTi-yNb alloys in concentrated nitric acid at elevated temperature

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Keywords

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