南方科技大学知识苑(SUSTech KC): Orientation dependence of dislocation structure in surface grain of pure copper deformed in tension

题名	Orientation dependence of dislocation structure in surface grain of pure copper deformed in tension
作者	Sun，Qingqing1,2 ; Ni，Yong 2; Wang，Shuai1
通讯作者	Wang，Shuai
发表日期	2021-01-15
DOI	10.1016/j.actamat.2020.11.016
发表期刊	ACTA MATERIALIA 影响因子和分区
ISSN	1359-6454
EISSN	1873-2453
卷号	203
摘要	Orientation dependence of dislocation structure in surface grain of pure copper deformed in tension was investigated and compared with that in bulk grain. Dislocation cell structure is dominated in [100]-[100] surface grain at a given strain, which follows the same rule with its bulk counterpart. For [110]-[110] and [110]-[111], bulk grains in a strain range are dominated by dislocation cell block structures, while surface grains with the same lattice rotation history can develop into either a cell block structure or dislocation cell/tangle structure, depending on the grain geometry and strain level. Dislocation structure evolution is postponed in surface grains due to the image force of the surface. The results indicate that dislocation evolution in surface grain of pure copper is not only orientation-dependent, but also strongly related with grain geometry.
关键词	Dislocation structure Grain geometry Orientation dependence Pure Cu Surface
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一 ; 通讯
资助项目	National Natural Science Foundation of China[11672285,51901098] ; China Postdoctoral Science Foundation[223278] ; Education Department of Guangdong Province[2018KQNCX227]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000600589700021
出版者	PERGAMON-ELSEVIER SCIENCE LTD
EI入藏号	20204709509754
EI主题词	Copper ; Geometry ; Cells
EI分类号	Biological Materials and Tissue Engineering:461.2 ; Biology:461.9 ; Copper:544.1 ; Mathematics:921
ESI学科分类	MATERIALS SCIENCE
Scopus记录号	2-s2.0-85096195849
来源库	Scopus
引用统计	被引频次[WOS]：18
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/209403
专题	工学院_机械与能源工程系
作者单位	1.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China 2.CAS Key Laboratory of Mechanical Behavior and Design of Materials,Department of Modern Mechanics,University of Science and Technology of China,Hefei,230026,China
第一作者单位	机械与能源工程系
通讯作者单位	机械与能源工程系
第一作者的第一单位	机械与能源工程系
推荐引用方式 GB/T 7714	Sun，Qingqing,Ni，Yong,Wang，Shuai. Orientation dependence of dislocation structure in surface grain of pure copper deformed in tension[J]. ACTA MATERIALIA,2021,203.
APA	Sun，Qingqing,Ni，Yong,&Wang，Shuai.(2021).Orientation dependence of dislocation structure in surface grain of pure copper deformed in tension.ACTA MATERIALIA,203.
MLA	Sun，Qingqing,et al."Orientation dependence of dislocation structure in surface grain of pure copper deformed in tension".ACTA MATERIALIA 203(2021).