Development of roping in an aluminum automotive alloy AA6111

• Published in: Acta materialia 2000-08, Vol.48 (13), p.3361-3376
• Main Authors: Baczynski, G.J., Guzzo, R., Ball, M.D., Lloyd, D.J.
• Format: Article
• Language: English
• Subjects: Aluminum alloys; Applied sciences; Cold working, work hardening; annealing, post-deformation annealing, quenching, tempering recovery, and crystallization; Cold working, work hardening; annealing, quenching, tempering, recovery, and recrystallization; textures; Computer simulation; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Materials science; Metals. Metallurgy; Physics; Surfaces & interfaces; Texture; Treatment of materials and its effects on microstructure and properties; X-ray diffraction (XRD)
• ISSN: 1359-6454; 1873-2453
• DOI: 10.1016/S1359-6454(00)00141-5

The roping behavior of an automotive sheet alloy AA6111 was investigated for two processing schedules that led to the production of: (1) roping and (2) non-roping materials. In contrast to the data available in the literature, this study shows that both ridges and valleys on the upper and lower surfaces are irregularly distributed in the rolling direction (RD) and that ribbed profiles and corrugations are rare. The electron back scattering diffraction (EBSD) experiments demonstrated that banded structures of Goss are more evident throughout the specimen thickness than similar bands of Cube texture. The volume texture of the hotband comprised of the strong brass–copper–S fiber, while exclusively Cube texture was present in the non-roping material. In addition to the Cube, the Goss, G1, S and [100]//RD fiber components were produced in specimens associated with roping. The present study shows that the spatial distribution of the Goss component is responsible for the roping behavior in aluminum alloy AA6111.