Diffusion and oxidation behavior of Cr-ZrN coated Zr alloy accident tolerant fuel cladding materials at high temperature

被引：8

作者：

Yang, Jianqiao ^{[1
]}

Ding, Yining ^{[2
]}

Zhao, Fen ^{[3
]}

Sun, Panpan ^{[4
]}

Shang, Lunlin ^{[5
]}

Cui, Yanguang ^{[6
]}

Ma, Dayan ^{[7
]}

Yun, Di ^{[3
]}

Wang, Shuzhong ^{[1
]}

Xu, Donghai ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Key Lab Thermo Fluid Sci & Engn, MOE, Sch Energy & Power Engn, Xian 710049, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian 710049, Peoples R China

[3] Xi An Jiao Tong Univ, Sch Nucl Sci & Technol, Xian 710049, Peoples R China

[4] Shaanxi Univ Sci & Technol, Coll Mech & Elect Engn, Xian 710021, Shaanxi, Peoples R China

[5] Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China

[6] Shanghai Nucl Engn Res & Design Inst, Shanghai 200233, Peoples R China

[7] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2024年 / 476卷

基金：

中国国家自然科学基金;

关键词：

Cr coating; Accident tolerant fuel; ZrN coating; Interdiffusion; Oxidation; NITROGEN;

D O I：

10.1016/j.surfcoat.2023.130246

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, a Cr-ZrN coating was constructed on Zr alloys as a protective layer. The ZrN layer was employed as an interlayer to restrain the Cr-Zr interdiffusion. The samples were annealed in inert gas and steam environment up to 1400 degrees C. During high-temperature annealing, the ZrN coating that produced via multi-arc ion plating decomposed into zirconium and nitrogen. Discontinuous pores formed beneath the residual ZrN layer, which were formed by accumulation of nitrogen. With the increase of exposure time, the sizes of these pores decreased and finally disappeared. Compared to Cr-coated Zr alloys, the ZrN interlayer effectively limited the Cr-Zr interdiffusion and eutectic reaction over a limited duration. Both the ZrN layer and the subsequently formed alpha-Zr (N) layer served as barrier layers, impeding the diffusion of Cr and Zr atoms.

引用

页数：9

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