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Selection of {1012} twin variants during uniaxial compression in pure hafnium

文献类型：期刊论文

作者Hu, Jianan1,2; Han, Fuzhou1,2; Ren, Jie1,2; Ali, Muhammad1,2; Wang, Qichen1,2; Guo, Wenbin1,2; Li, Geping1,2
刊名JOURNAL OF MATERIALS SCIENCE
出版日期2024-09-01
卷号59期号:33页码:15802-15815
ISSN号0022-2461
DOI10.1007/s10853-024-10093-w
通讯作者Han, Fuzhou(fzhan16s@imr.ac.cn) ; Li, Geping(gpli@imr.ac.cn)
英文摘要The macroscopic Schmid's law and microscopic local strain accommodation mechanism have been widely used to determine the twin variants selection combinedly. In the present study, the selection of 1012 twin variants of pure Hf under uniaxial compression was studied with the combined use of electron backscatter diffraction (EBSD) technology and displacement gradient tensor. Results indicated that the initially formed 1012 twin variant in one grain adheres to the Schmid's law, and its appearance modifies the local stress state within the matrix and in neighboring grains. The formation of the following intragranular twin variants and twin pairs at grain boundaries (GBs) was affected by the modified local stress field. For example, the growth and even nucleation of one twin variant can be suppressed by the intragranular local stress induced by the appearance of its para-position twin; paired 1012 twins can be generated at GB if one of the twin variants is able to accommodate the local stress caused by twin impingement on GB in its neighboring grain. For the twin pairs at GBs, the value of misorientation angle between two neighboring grains determines whether the incoming twins can transfer across the GB or be blocked by the GB, and this threshold is 33 degrees in the present study.
资助项目China Postdoctoral Science Foundation[2023M733568] ; China Postdoctoral Science Foundation
WOS研究方向Materials Science
语种英语
WOS记录号WOS:001297086000002
出版者SPRINGER
资助机构China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL  
专题金属研究所_中国科学院金属研究所
通讯作者Han, Fuzhou; Li, Geping
作者单位1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Hu, Jianan,Han, Fuzhou,Ren, Jie,et al. Selection of {1012} twin variants during uniaxial compression in pure hafnium[J]. JOURNAL OF MATERIALS SCIENCE,2024,59(33):15802-15815.
APA Hu, Jianan.,Han, Fuzhou.,Ren, Jie.,Ali, Muhammad.,Wang, Qichen.,...&Li, Geping.(2024).Selection of {1012} twin variants during uniaxial compression in pure hafnium.JOURNAL OF MATERIALS SCIENCE,59(33),15802-15815.
MLA Hu, Jianan,et al."Selection of {1012} twin variants during uniaxial compression in pure hafnium".JOURNAL OF MATERIALS SCIENCE 59.33(2024):15802-15815.

入库方式： OAI收割

来源：金属研究所

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