期刊
METALS
卷 10, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/met10020156
关键词
asymmetric rolling; aluminum alloy; planar anisotropy; mechanical properties; microstructures
资金
- Slovenian Research Agency [P2-0132, P2-0344]
- program MARTINA - Slovenian Ministry of education, science and sport
- European Regional Development Fund
The impact of asymmetric cold rolling was quantitatively assessed for an industrial aluminum alloy AA 5454. The asymmetric rolling resulted in lower rolling forces and higher strains compared to conventional symmetric rolling. In order to demonstrate the positive effect on the mechanical properties with asymmetric rolling, tensile tests, plastic-strain-ratio tests and hardness measurements were conducted. The improvements to the microstructure and the texture were observed with a light and scanning electron microscope; the latter making use of electron-backscatter diffraction. The result of the asymmetric rolling was a much lower planar anisotropy and a more homogeneous metal sheet with finer grains after annealing to the soft condition. The increased isotropy of the deformed and annealed aluminum sheet is a product of the texture heterogeneity and reduced volume fractions of separate texture components.
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