Enhancement of oxidation resistance of zirconium alloy with anodic nanoporous oxide layer in high-temperature air/steam environments

被引：26
|
作者：
Park, Yang Jeong [1 ]
Kim, Jung Woo [1 ]
Ali, Ghafar [1 ,2 ]
Cho, Sung Oh [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Nucl & Quant Engn, 373-1 Guseong, Yuseong 305701, Daejeon, South Korea
[2] PINSTECH, Nanomat Res Grp, Phys Div, Nilore Islamabad, Pakistan
来源：
CORROSION SCIENCE | 2018年 / 140卷
基金：
新加坡国家研究基金会;
关键词：
alloy; zirconium; Anodic films; high temperature corrosion; oxidation; ACCIDENT TOLERANT FUELS; SPECIAL JNM ISSUE; H2SO4/HF ELECTROLYTES; ZIRCALOY-4; MICROSCOPY; LWRS; AIR; RADIATION; BEHAVIOR; M5(R);
D O I：
10.1016/j.corsci.2018.05.044
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Highly-ordered and hexagonally close-packed nanoporous zirconium oxide layer is formed on the surface of zirconium alloy by anodization, and the anti-oxidation behavior of the zirconium alloy with the nanoporous oxide layer has been investigated. The oxidation experiments were carried out in both air and steam environments at 1000 degrees C. Interestingly, zirconium alloy with the nanoporous oxide layer exhibits dramatic improvement in the oxidation resistance compared to bare zirconium alloy without the nanoporous oxide layer. Analysis using several characterization tools reveals that large single-crystalline columnar zirconium oxide grains are formed beneath the nanoporous oxide layer and these grains prevent further oxidation.
引用
收藏
页码：217 / 222
页数：6
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