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Atypical U-shape micro-stacking faults within body-centered tetragonal Zr2Si nanoparticle in silicon modified Zircaloy-4 alloy
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
Corresponding AuthorLi, Geping(gpli@imr.ac.cn)
2021-10-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume203Pages:6
AbstractStacking 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.
KeywordTransmission electron microscopy U-shape stacking faults Body-centered tetragonal structure Zr(2)si Intermetallic phase
DOI10.1016/j.scriptamat.2021.114051
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000679473900007
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159717
Collection中国科学院金属研究所
Corresponding AuthorLi, Geping
Affiliation1.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
Recommended Citation
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.
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