| Autor: |
Vu VQ; Laboratory of Excellence Design of Alloy Metals for Low-Mass Structures, CNRS, University of Lorraine, 57070 Metz, France.; LEM3 Laboratory, CNRS, Université de Lorraine, 57070 Metz, France.; Thai Nguyen University of Technology, 666, 3/2 Street, Thai Nguyen 250000, Vietnam., Toth LS; Laboratory of Excellence Design of Alloy Metals for Low-Mass Structures, CNRS, University of Lorraine, 57070 Metz, France.; LEM3 Laboratory, CNRS, Université de Lorraine, 57070 Metz, France., Beygelzimer Y; Donetsk Institute for Physics and Engineering named after O. O. Galkin, National Academy of Sciences of Ukraine, pr. Nauki 46, 03028 Kyiv, Ukraine., Zhao Y; School of Materials Science and Engineering, Dalian Jiaotong University, 794 Huanghe Road, Dalian 116028, China. |
| Abstrakt: |
The Friction-Assisted Lateral Extrusion Process (FALEP) is a severe plastic deformation (SPD) technique for producing metal sheets from bulk metal or powder in one single deformation step at room temperature. In the present work, aluminum Al-1050 was deformed by FALEP. Then, its microstructure was examined by EBSD; the crystallographic texture by X-ray; material strength, ductility, and the Lankford parameter by tensile testing; the latter also by polycrystal plasticity simulations. It is shown that the microstructure was highly refined, with the grain size reduced more than 160 times down to 600 nm under the imposed shear strain of 20. The obtained texture was a characteristic simple shear texture with a shear plane nearly parallel to the plane of the sheet. The yield and ultimate strengths increased by about 10 times and three times, respectively. The Lankford parameter was 1.28, which is very high for aluminum, and due to the specific shear texture, unusual in a sheet. All these exceptional characteristics of Al-1050 were obtained thanks to the efficiency of the FALEP SPD process, which is a promising candidate for industrial applications. |
