Fiber texture-dependent oxidation behaviour of Cr-coated zirconium alloy in high temperature steam

Yao Wang; Luhua Wang; Lunlin Shang; Guanghai Bai; Jinshan Li; Fei Xue; Weijia Gong

doi:10.1016/j.corsci.2022.110449

Fiber texture-dependent oxidation behaviour of Cr-coated zirconium alloy in high temperature steam

Yao Wang, Luhua Wang, Lunlin Shang, Guanghai Bai, Jinshan Li, Fei Xue, Weijia Gong

School of Materials Sience and Engineering

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

32 Scopus citations

Abstract

Cr-coatings with distinct crystallographic fiber textures were deposited on zirconium nuclear fuel cladding material. The <100> textured Cr-coating demonstrated superior properties to the <110> and <111> textured ones after high temperature steam oxidation. Electron microscopy characterization revealed that improvement in oxidation resistance could be attributed to rapid growth of <100> Cr-coating grains which leads to reduced grain boundaries for oxygen diffusion and zirconia particle nucleation as well as the absence of transgranular nano-porosity arrays in the residual Cr-coating. This work demonstrates a novel mechanism of orientation-dependent Cr-coating corrosion, which is expected to guide optimized design of Cr-coated nuclear fuel cladding.

Original language	English
Article number	110449
Journal	Corrosion Science
Volume	205
DOIs	https://doi.org/10.1016/j.corsci.2022.110449
State	Published - 15 Aug 2022

Keywords

ATF cladding
Cr-coating
Fiber texture
High temperature oxidation
Nano-porosity
SEM

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10.1016/j.corsci.2022.110449

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title = "Fiber texture-dependent oxidation behaviour of Cr-coated zirconium alloy in high temperature steam",

abstract = "Cr-coatings with distinct crystallographic fiber textures were deposited on zirconium nuclear fuel cladding material. The <100> textured Cr-coating demonstrated superior properties to the <110> and <111> textured ones after high temperature steam oxidation. Electron microscopy characterization revealed that improvement in oxidation resistance could be attributed to rapid growth of <100> Cr-coating grains which leads to reduced grain boundaries for oxygen diffusion and zirconia particle nucleation as well as the absence of transgranular nano-porosity arrays in the residual Cr-coating. This work demonstrates a novel mechanism of orientation-dependent Cr-coating corrosion, which is expected to guide optimized design of Cr-coated nuclear fuel cladding.",

keywords = "ATF cladding, Cr-coating, Fiber texture, High temperature oxidation, Nano-porosity, SEM",

author = "Yao Wang and Luhua Wang and Lunlin Shang and Guanghai Bai and Jinshan Li and Fei Xue and Weijia Gong",

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doi = "10.1016/j.corsci.2022.110449",

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TY - JOUR

T1 - Fiber texture-dependent oxidation behaviour of Cr-coated zirconium alloy in high temperature steam

AU - Wang, Yao

AU - Wang, Luhua

AU - Shang, Lunlin

AU - Bai, Guanghai

AU - Li, Jinshan

AU - Xue, Fei

AU - Gong, Weijia

PY - 2022/8/15

Y1 - 2022/8/15

N2 - Cr-coatings with distinct crystallographic fiber textures were deposited on zirconium nuclear fuel cladding material. The <100> textured Cr-coating demonstrated superior properties to the <110> and <111> textured ones after high temperature steam oxidation. Electron microscopy characterization revealed that improvement in oxidation resistance could be attributed to rapid growth of <100> Cr-coating grains which leads to reduced grain boundaries for oxygen diffusion and zirconia particle nucleation as well as the absence of transgranular nano-porosity arrays in the residual Cr-coating. This work demonstrates a novel mechanism of orientation-dependent Cr-coating corrosion, which is expected to guide optimized design of Cr-coated nuclear fuel cladding.

AB - Cr-coatings with distinct crystallographic fiber textures were deposited on zirconium nuclear fuel cladding material. The <100> textured Cr-coating demonstrated superior properties to the <110> and <111> textured ones after high temperature steam oxidation. Electron microscopy characterization revealed that improvement in oxidation resistance could be attributed to rapid growth of <100> Cr-coating grains which leads to reduced grain boundaries for oxygen diffusion and zirconia particle nucleation as well as the absence of transgranular nano-porosity arrays in the residual Cr-coating. This work demonstrates a novel mechanism of orientation-dependent Cr-coating corrosion, which is expected to guide optimized design of Cr-coated nuclear fuel cladding.

KW - ATF cladding

KW - Cr-coating

KW - Fiber texture

KW - High temperature oxidation

KW - Nano-porosity

KW - SEM

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DO - 10.1016/j.corsci.2022.110449

M3 - 文章

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SN - 0010-938X

VL - 205

JO - Corrosion Science

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Fiber texture-dependent oxidation behaviour of Cr-coated zirconium alloy in high temperature steam

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Keywords

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