Grain morphology and crystal structure of pre-transition oxides formed on Zircaloy-4

被引：49

作者：

Gong, Weijia ^{[1
]}

Zhang, Hailong ^{[1
]}

Qiao, Yi ^{[1
]}

Tian, Hang ^{[1
]}

Ni, Xiaodong ^{[2
]}

Li, Zhongkui ^{[3
]}

Wang, Xitao ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China

[3] Northwest Inst Nonferrous Met Res, New Mat Res Lab, Xian 710016, Peoples R China

来源：

CORROSION SCIENCE | 2013年 / 74卷

关键词：

Zirconium; TEM; High temperature corrosion; Oxidation; ZIRCONIUM ALLOYS; HIGH-TEMPERATURE; SYNCHROTRON-RADIATION; CLADDING ALLOYS; ZR ALLOYS; OXIDATION; CORROSION; WATER; MICROSTRUCTURE; MECHANISMS;

D O I：

10.1016/j.corsci.2013.05.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Grain morphology and crystal structure of pre-transition oxides formed on a Zircaloy-4 alloy were investigated. The results show that monoclinic columnar grains align tightly in inner oxides, whereas porous monoclinic equiaxed grains exist in outer oxides. Small-sized tetragonal equiaxed grains are embedded in monoclinic columnar grains, with tetragonal phase content declining from the inner to the outer oxides. The crystallographic orientation relationship of (111)(m)//(10 (1) over bar0)(alpha-zr) was identified, which explains well the formation of monoclinic texture on the zirconium substrate. This work advances the understanding of corrosion properties before transition of oxidation of zirconium alloys. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：323 / 331

页数：9

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