High-temperature oxidation of Zr-1Nb zirconium alloy with protective Cr/Mo coating

被引：36
|
作者：
Syrtanov, M. S. [1 ]
Kashkarov, E. B. [1 ]
Abdulmenova, A., V [1 ]
Sidelev, D., V [1 ]
机构：
[1] Tomsk Polytech Univ, 30 Lenina Av, Tomsk 634050, Russia
来源：
SURFACE & COATINGS TECHNOLOGY | 2022年 / 439卷
基金：
俄罗斯科学基金会;
关键词：
Magnetron sputtering; Chromium and molybdenum; Zirconium alloy; High-temperature oxidation; In situ XRD; Interdiffusion; Accident tolerant fuel; Diffusion barrier; BARRIER COATINGS; BEHAVIOR; DIFFUSION; MICROSTRUCTURE; DEPOSITION;
D O I：
10.1016/j.surfcoat.2022.128459
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The oxidation and interdiffusion behavior of Cr- and Cr/Mo-coated Zr-1Nb zirconium alloy were investigated. A single-layer Cr (8 um) and multilayer Cr (8 mu m)/Mo (3 mu m) coatings were deposited by magnetron sputtering. The coated Zr-1Nb alloy samples were oxidized in air at 1100 degrees C for 15-60 min. Both coating types had a protective scale during high-temperature (HT) oxidation. The use of Mo sublayer resulted in preventing Cr-Zr interdiffusion under high temperature. Scanning electron microscopy, optical microscopy, X-ray diffraction before and after HT oxidation and in situ X-ray diffraction up to 1250 degrees C were used to identify interdiffusion behavior of the system of Cr/Mo/Zr. Some aspects of applying of Cr/Mo coatings for Zr nuclear fuel claddings are discussed.
引用
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页数：10
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