The influence of microtexture on the formation mechanism of nodules in Zircaloy-4 alloy tube

doi:10.1016/j.jmst.2020.02.010

IMR OpenIR

	The influence of microtexture on the formation mechanism of nodules in Zircaloy-4 alloy tube
	Zhang, Yingdong 1,2; Yuan, Fusen 1,2; Han, Fuzhou 1,2; Ali, Muhammad 1,2; Guo, Wenbin 1,2; Li, Geping 1; Liu, Chengze 1,2; Gu, Hengfei 1,3
通讯作者	Li, Geping(gpli@imr.ac.cn)
	2020-06-15
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	47 页码:68-75
摘要	Corrosion resistance of Zircaloy-4 alloy tube in superheated steam at 673 K/10.3 MPa is anisotropic. A part of the surface undergoes uniform corrosion while the other suffers nodular corrosion. Narrow and wide nodules are observed after an exposure period of 3 and 30 days, respectively. A new matrix transformation method is established in order to study the formation mechanism of nodules in the cross-section (CS) of Zircaloy-4 alloy tube using the EBSD technique, while the CS perpendicular to axial direction (AD). The results reveal that the microtexture is a key factor behind the two types of corrosion. Furthermore, the oxide layers grow anisotropically over the corroded surface. A thick oxide layer forms over the nodular corrosion region on the grains with c-axis oriented in the range of 40 degrees around tangential direction (TD), whereas a thin oxide layer over the uniform corrosion region is detected on the grains with c-axis oriented in the range of 68 degrees around TD. In short, the anisotropic growth of oxide layer was caused by the change of microtexture of the Zr-4 alloy tube, and this anisotropic growth of oxide layer contributed to the nodules formation. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Zircaloy-4 alloy Microtexture Nodular corrosion EBSD technique Matrix transformation method
DOI	10.1016/j.jmst.2020.02.010
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000526956900008
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/138406
专题	中国科学院金属研究所
通讯作者	Li, Geping
作者单位	1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China 3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yingdong,Yuan, Fusen,Han, Fuzhou,et al. The influence of microtexture on the formation mechanism of nodules in Zircaloy-4 alloy tube[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,47:68-75.
APA	Zhang, Yingdong.,Yuan, Fusen.,Han, Fuzhou.,Ali, Muhammad.,Guo, Wenbin.,...&Gu, Hengfei.(2020).The influence of microtexture on the formation mechanism of nodules in Zircaloy-4 alloy tube.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,47,68-75.
MLA	Zhang, Yingdong,et al."The influence of microtexture on the formation mechanism of nodules in Zircaloy-4 alloy tube".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 47(2020):68-75.