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

文献类型：期刊论文

作者Han, Fuzhou1,2; Yuan, Fusen1,2; Li, Geping2; Zhang, Yingdong1,2; Ali, Muhammad1,2; Guo, Wenbin1,2; Ren, Jie1,2; Liu, Chengze1,2; Gu, Hengfei2,3
刊名SCRIPTA MATERIALIA
出版日期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
DOI10.1016/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
WOS记录号WOS:000679473900007
出版者PERGAMON-ELSEVIER SCIENCE LTD
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.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Shi Changxu Innovat Ctr Advanved Mat, Inst Met Res, 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.

入库方式： OAI收割

来源：金属研究所

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