Effect of initial texture on texture evolution in 1050 Al alloys under simple shear |
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Authors: | Jun-Hyun Han Kyu Hwana Oh Jae-Chul Lee |
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Affiliation: | (1) the Division of Materials Science and Engineering, Korea Institute of Science and Technology (KIST), 130-650 Seoul, Korea;(2) School of Materials Science and Engineering, Seoul National University, 151-742 Seoul, Korea |
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Abstract: | The effect of the initial textures prior to dissimilar channel angular pressing (DCAP) on the texture evolution of the 1050 Al alloy sheets, processed by the continuous confined strip shearing (C2S2) process, were studied. The four different specimens, i.e., cold rolled, heat treated, warm rolled, and as-cast 1050 Al alloy sheets, having various initial textures were prepared using different thermomechanical routes. Although the major texture types were significantly affected by the initial textures prior to DCAP, DCAP always promoted both the 〈111〉//normal direction (ND) textures and the {001}〈110〉 rotated cube texture regardless of the initial texture status. Effects of the texture evolutions due to equal channel angular pressing (ECAP) on deep drawbility and planar anisotropy were analyzed based on the -r value and the Δr value determined from the measured pole figures. A feasibility for producing the 1050 Al alloy sheets having high deep drawbility and low planar anisotropy was demonstrated. |
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