Strain distribution and lattice rotations during in-situ tension of aluminum with a transmodal grain structure

doi:10.1016/j.msea.2021.142010

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	Strain distribution and lattice rotations during in-situ tension of aluminum with a transmodal grain structure
	Gao, W. Q.1; Zhang, C. L.1; 杨沐鑫.2; Zhang, S. Q.1,3; Jensen, D. Juul 4; Godfrey, A.1
通讯作者	Godfrey, A.(awgodfrey@mail.tsinghua.edu.cn)
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2021-11-02
卷号	828 页码:11
ISSN	0921-5093
摘要	Samples of aluminum were prepared using spark plasma sintering from a mixture of coarse (average particle size of 6 mu m) and fine (average particle size of 1 mu m) powders to achieve a heterogeneous transmodal grain size distribution covering a range of grain sizes from approximate to 1 to 10 mu m. By careful choice of surface markers both electron back-scatter diffraction (EBSD) data, to track crystal rotations, and digital image correlation (DIC) data, to track local plastic deformation, were collected from the same region during in-situ tensile deformation up to a strain of epsilon t = 0.126. A heterogeneous pattern of crystal rotation is observed for all grain sizes, although in some smaller grains (defined as those <4 mu m diameter) no clear grain sub-division was identified. Plastic strain was more concentrated in the larger grains, but the average rotation rate of the smaller grains was found to be higher than that of larger grains, showing also a much wider spread in rotation rate. Based on the change in average orientation, a clear orientation dependence in the tensile axis rotation direction was observed for many larger grains, in agreement with previously reported data for aluminum with average grain size of 75 mu m, whereas the smaller grains showed a more complex rotation behavior, with more of these grains showing unexpected tensile axis rotations. The combination of both EBSD and DIC during in-situ experiments provides a rich data set for analysis of plastic deformation in samples with a heterogeneous microstructure.
关键词	Heterogenous grain structure Strain distribution High-resolution digital image correlation (HR-DIC) Near-micrometer grain size Electron backscatter diffraction (EBSD)
DOI	10.1016/j.msea.2021.142010
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000696722200002
关键词[WOS]	AL-MG ALLOY ; HIGH-STRENGTH ; SIZE ; DEFORMATION ; DUCTILITY ; MICROSTRUCTURE ; STEEL ; FINE ; BOUNDARIES ; EVOLUTION
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助项目	National Key Research and Development Program of China[2016YFB0700403] ; National Natural Science Foundation of China[52071326] ; National Natural Science Foundation of China[51671113] ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme[788567]
项目资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme
论文分区	一类
力学所作者排名	3
RpAuthor	Godfrey, A.
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/87421
专题	非线性力学国家重点实验室
作者单位	1.Tsinghua Univ, Sch Mat Sci & Engn, Key Lab Adv Mat MOE, Beijing 100084, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China; 4.Tech Univ Denmark, Dept Mech Engn, DK-2800 Lyngby, Denmark
推荐引用方式 GB/T 7714	Gao, W. Q.,Zhang, C. L.,杨沐鑫.,et al. Strain distribution and lattice rotations during in-situ tension of aluminum with a transmodal grain structure[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,828:11.
APA	Gao, W. Q.,Zhang, C. L.,杨沐鑫.,Zhang, S. Q.,Jensen, D. Juul,&Godfrey, A..(2021).Strain distribution and lattice rotations during in-situ tension of aluminum with a transmodal grain structure.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,828,11.
MLA	Gao, W. Q.,et al."Strain distribution and lattice rotations during in-situ tension of aluminum with a transmodal grain structure".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 828(2021):11.

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