Influence of coating parameters on oxidation behavior of Cr-coated zirconium alloy for accident tolerant fuel claddings

被引：49
|
作者：
Kashkarov, E. B. [1 ]
Sidelev, D. V. [1 ]
Pushilina, N. S. [1 ]
Yang, J. [2 ,3 ]
Tang, C. [2 ]
Steinbrueck, M. [2 ]
机构：
[1] Natl Res Tomsk Polytech Univ, Sch Nucl Sci & Engn, Tomsk 634050, Russia
[2] Karlsruhe Inst Technol, Inst Appl Mat, D-76344 Eggenstein, Germany
[3] Xi An Jiao Tong Univ, Sch Energy & Power Engn, 28 Xianning West Rd, Xian 710049, Peoples R China
来源：
CORROSION SCIENCE | 2022年 / 203卷
基金：
俄罗斯科学基金会;
关键词：
Accident tolerant fuel; Chromium coating; Zirconium alloy; Magnetron sputtering; High-temperature oxidation; Microstructure; CORROSION;
D O I：
10.1016/j.corsci.2022.110359
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Cr coatings (4.5-9.0 mu m-thick) with porous/columnar and dense/columnar microstructure were deposited on Zr alloy. Oxidation was performed at 900, 1050, 1200 and 1400 degrees C in steam to define the role of coating microstructure and thickness on oxidation behavior of Cr-coated Zr alloy. The activation energy for chromium oxidation decreases from 249 to 124 kJ/mol when the coating microstructure changes from dense to porous. Both coatings types are consumed by Cr-Zr interdiffusion resulting in the similar thickness of residual Cr. The CrZr interdiffusion can prevent forming the Cr oxide film and cause direct oxidation of the alloy at 1400 degrees C.
引用
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页数：10
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