| Autor: |
Cui, Xiao-Lei, Lin, Peng, Ma, Yan-Yan, Yan, Chen-Kan, Li, Li-Chen, Chi, Cheng-Zhong, Liu, Gang |
| Předmět: |
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| Zdroj: |
JOM: The Journal of The Minerals, Metals & Materials Society (TMS); May2019, Vol. 71 Issue 5, p1696-1704, 9p, 3 Color Photographs, 1 Black and White Photograph, 1 Diagram, 3 Graphs |
| Abstrakt: |
The anisotropic deformation behavior and forming limit of hot-rolled Al/Mg/Al three-layered composite sheets have been investigated in detail. Uniaxial tensile tests were conducted on composite sheets at 0°, 45°, and 90° to the rolling direction. The results show that the properties of the hot-rolled 5052/AZ31/5052 three-layered composite sheet with fine grain distribution and diffusion layer of 18.71 μm were anisotropic and showed temperature dependence. The 0° direction showed the highest n value and the 90° direction the lowest. The highest Lankford parameter was found in the 45° direction, with the maximum r ¯ value and minimum absolute value of Δ r at 230°C. Moreover, hemispherical punch tests revealed that the composite sheet exhibited better formability at 230°C than 170°C, especially in the biaxial stress state. In the equibiaxial tensile stress state, significant anisotropy of the thickness distribution and different fracture appearance were also observed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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