The texture and formation of shear bands in a hot rolled 7050 aluminum alloy

• Published in: Scripta materialia 1998-08, Vol.39 (4), p.583-588
• Main Authors: Chang, S.C., Jiang, Q.D., Hu, J.R., Chen, F.R.
• Format: Article
• Language: English
• Subjects: Applied sciences; Condensed matter: structure, mechanical and thermal properties; Deformation and plasticity (including yield, ductility, and superplasticity); Exact sciences and technology; Mechanical and acoustical properties of condensed matter; Mechanical properties of solids; Metals. Metallurgy; Physics
• ISSN: 1359-6462; 1872-8456
• DOI: 10.1016/S1359-6462(98)00200-0

The mechanical properties of the high-strength 7XXX series aluminum alloys can be improved through microstructural modifications in addition to alloy compositional changes. Among microstructural features, the effect of texture on mechanical properties was least well understood. By plastic deformation of a metal specimen, the crystalline lattice rotates toward one or more stable (preferred) orientaitons, thus establishing a deformation texture. Since the rolling process tends to increase the tendency of a sharp texture and the localization of plastic deformation, it is interesting to study in detail the influence of texture on the deformation behavior of a rolled metal. The studies in the past investigated mainly the influences of microstructural features on the material properties under tensile stress. Since compression is more closely related to most metal working processes, the objective of this study is to investigate the formation of shear band in compression and the effect of texture on the shear band formation of a 7050-T7451 Al alloy.