Investigation of oxide layers formed on Zircaloy-4 coarse-grained specimens corroded at 360 °C in lithiated aqueous solution

被引：28

作者：

Gou, Shaoqiu ^{[1
]}

Zhou, Bangxin ^{[1
]}

Chen, Chuanming ^{[1
]}

Yao, Meiyi ^{[1
]}

Peng, Jianchao ^{[2
]}

Liang, Xue ^{[2
]}

Zhang, Jinlong ^{[1
]}

Li, Qiang ^{[2
]}

机构：

[1] Shanghai Univ, Inst Mat, Shanghai 200072, Peoples R China

[2] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China

来源：

CORROSION SCIENCE | 2015年 / 92卷

基金：

中国国家自然科学基金;

关键词：

Zirconium; TEM; SEM; High temperature corrosion; Oxidation; Interfaces; WATER CHEMISTRY; METAL/OXIDE INTERFACE; ZIRCONIUM ALLOYS; OXIDATION; EVOLUTION; BEHAVIOR; KINETICS; FILM;

D O I：

10.1016/j.corsci.2014.12.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Zircaloy-4 coarse-grained specimens were used to investigate the microstructure and crystal structure of oxide layers formed on (10-10) crystal plane by autoclave tests at 360 degrees C in lithated aqueous solution. Oxygen-rich regions, of which oxygen content was close to the level of a saturated solid solution in alpha-Zr, were only distributed at the wave valley of the O/M interface. A new kind of zirconium sub-oxide about 10 nm thick formed between alpha-Zr matrix and monoclinic ZrO2 was detected, which had a bcc structure (lattice parameter a = 0.37 nm) in the coherent relationship with alpha-Zr matrix and with monoclinic ZrO2. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：237 / 244

页数：8

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