| 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. Juul4; Godfrey, A.1 | |
| Corresponding Author | Godfrey, A.([email protected]) |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 2021-11-02 | |
| Volume | 828Pages:11 |
| ISSN | 0921-5093 |
| Abstract | 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. |
| Keyword | 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 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000696722200002 |
| WOS Keyword | AL-MG ALLOY ; HIGH-STRENGTH ; SIZE ; DEFORMATION ; DUCTILITY ; MICROSTRUCTURE ; STEEL ; FINE ; BOUNDARIES ; EVOLUTION |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Project | 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] |
| Funding Organization | 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 |
| Classification | 一类 |
| Ranking | 3 |
| Contributor | Godfrey, A. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/87421 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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.Rp_Au:Godfrey, A. |
| 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2021F410.pdf（8128KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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