Atypical U-shape micro-stacking faults within body-centered tetragonal Zr2Si nanoparticle in silicon modified Zircaloy-4 alloy

doi:10.1016/j.scriptamat.2021.114051

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	Atypical U-shape micro-stacking faults within body-centered tetragonal Zr2Si nanoparticle in silicon modified Zircaloy-4 alloy
	Han, Fuzhou 1,2; Yuan, Fusen 1,2; Li, Geping 1; Zhang, Yingdong 1,2; Ali, Muhammad 1,2; Guo, Wenbin 1,2; Ren, Jie 1,2; Liu, Chengze 1,2; Gu, Hengfei 1,3
刊名	SCRIPTA MATERIALIA
	2021-10-01
卷号	203 页码:6
关键词	Transmission electron microscopy U-shape stacking faults Body-centered tetragonal structure Zr(2)si Intermetallic phase
ISSN号	1359-6462
DOI	10.1016/j.scriptamat.2021.114051
通讯作者	Li, Geping(gpli@imr.ac.cn)
英文摘要	Stacking faults (SFs), which are directly related to partial or incomplete dislocation, have been frequently observed as typical planar defects in crystals with a relatively low stacking fault energy. Generally, stacking faults are unidirectional or intersecting. By using transmission electron microscopy (TEM), we document, for the first time, the presence of atypical U-shape stacking faults within body-centered tetragonal (BCT) structure Zr2Si nanoprecipitates (NPs) in an as-cast silicon modified Zircaloy-4 alloy (Zr-1.4Sn-0.19Fe-0.11Cr-0.35Si, wt.%). Atomic scale analyses for the characteristics and mechanism of this type stacking faults have been systematically carried out with high resolution TEM (HRTEM). Results reveal the formation mechanism of such stacking faults can be ascribed to the alternate occurences of two non-coplanar stacking faults on (100) and (010) planes. Further, we constructed structure models of planar faults based on atomic resolution HRTEM analysis, which will provide insights on the formation mechanisms of stacking faults with similar configurations. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000679473900007
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/159716]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, Geping
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Advanved Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, 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	Han, Fuzhou,Yuan, Fusen,Li, Geping,et al. Atypical U-shape micro-stacking faults within body-centered tetragonal Zr2Si nanoparticle in silicon modified Zircaloy-4 alloy[J]. SCRIPTA MATERIALIA,2021,203:6.
APA	Han, Fuzhou.,Yuan, Fusen.,Li, Geping.,Zhang, Yingdong.,Ali, Muhammad.,...&Gu, Hengfei.(2021).Atypical U-shape micro-stacking faults within body-centered tetragonal Zr2Si nanoparticle in silicon modified Zircaloy-4 alloy.SCRIPTA MATERIALIA,203,6.
MLA	Han, Fuzhou,et al."Atypical U-shape micro-stacking faults within body-centered tetragonal Zr2Si nanoparticle in silicon modified Zircaloy-4 alloy".SCRIPTA MATERIALIA 203(2021):6.