Three-dimensional quantification of texture heterogeneity in single-crystal aluminium subjected to equal channel angular pressing
| Autor: | Mao Liu, Toshihiko Koseki, Kiet Anh Tieu, Kun Zhou, Shoichi Nambu |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Pressing Materials science Metallurgy chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Finite element method chemistry Deformation mechanism Aluminium 0103 physical sciences Texture (crystalline) Severe plastic deformation Deformation (engineering) Composite material 0210 nano-technology Microscale chemistry |
| Zdroj: | Philosophical Magazine. 97:799-819 |
| ISSN: | 1478-6443 1478-6435 |
| DOI: | 10.1080/14786435.2017.1282179 |
| Popis: | A three-dimensional crystal plasticity finite element method (3D CPFEM) modelling of a real equal channel angular pressing (ECAP) process for investigating the mechanical properties and texture evolutions of single-crystal aluminium has been developed for the first time. The challenge of modelling such a severe plastic deformation via 3D CPFEM is how to accurately predict the deformation mechanism under the complicated contact conditions between a billet and a die. The validation by comparison with experimental observations demonstrates that the developed 3D CPFEM ECAP model is able to precisely capture the deformation characteristics at the microscale. Furthermore, this research clarified the previously remaining disputes such as the microstructural formation mechanism in the deformed area and the deformation nature in the plastic deformation zone. It is also the first time to extensively discuss the orientation-dependent deformation feature of the ECAP-processed billets, including morphology, la... |
| Databáze: | OpenAIRE |
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