Effect of texture and microstructure on strain hardening anisotropy for aluminum deformed in uniaxial tension and simple shear |
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| Institution: | 1. Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA;2. Department of Physics, University of Connecticut, Storrs, CT 06269, USA;3. Additive Manufacturing Innovation Center, University of Connecticut, Storrs, CT 06269, USA;1. Department of Integrated Systems Engineering, The Ohio State University, 210 Baker Systems, 1971 Neil Avenue, Columbus, OH 43210, United States;2. Department of Mechanical and Aerospace Engineering, The Ohio State University, 201 W 19th Ave, Columbus, OH 43210, United States;3. Department of Mechanical Engineering, Michigan State University, 428 S Shaw Ln, East Lansing, MI 48824, United States;4. Department of Automotive Engineering, Clemson University, Greenville, SC 29607, United States |
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| Abstract: | Uniaxial and simple shear stress–strain curves were obtained for a 1050-O aluminum alloy sheet sample in different specimen orientations with respect to the material symmetry axes. For uniaxial tension, a strong anisotropy of strain hardening was observed leading to about 30% difference in uniform tensile elongation between the extreme conditions. For simple shear, the hardening was also significantly different. These results were rationalized with an analysis that accounts for dislocation substructure observations, crystallographic texture measurements and polycrystal modeling of texture-induced strength evolution. |
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