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Mechanical and anisotropic behaviors of 7075 aluminum alloy sheets
Abstract Formability of 7075 aluminum alloy sheets was studied after annealing of 71% cold worked (CW) samples at different temperatures (270–450°C). Uniaxial tensile test, deep drawing and Erichsen test were carried out at room temperature to evaluate formability parameters. Average plastic strain ratio, planar anisotropy, and work hardening exponent of samples were calculated from the tensile test data. The tensile properties and formability parameters were correlated with the limit drawing ratio (LDR) and Erichsen test. It was found that the sheets annealed at 400°C possess good ductility, high average n-value and the normal anisotropy r-value so that, the formability of 7075 aluminum alloy can be improved by increasing annealing temperatures to the 350–400°C.
Mechanical and anisotropic behaviors of 7075 aluminum alloy sheets
Abstract Formability of 7075 aluminum alloy sheets was studied after annealing of 71% cold worked (CW) samples at different temperatures (270–450°C). Uniaxial tensile test, deep drawing and Erichsen test were carried out at room temperature to evaluate formability parameters. Average plastic strain ratio, planar anisotropy, and work hardening exponent of samples were calculated from the tensile test data. The tensile properties and formability parameters were correlated with the limit drawing ratio (LDR) and Erichsen test. It was found that the sheets annealed at 400°C possess good ductility, high average n-value and the normal anisotropy r-value so that, the formability of 7075 aluminum alloy can be improved by increasing annealing temperatures to the 350–400°C.
Mechanical and anisotropic behaviors of 7075 aluminum alloy sheets
Tajally, Mohammad (author) / Emadoddin, Esmaeil (author)
2010-09-01
6 pages
Article (Journal)
Electronic Resource
English
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