Abstract
The effects of annealing on the microstructure, texture, tensile properties, and R value evolution of an IF steel sheet after room-temperature symmetric and asymmetric rolling were examined. Simulations were carried out to obtain R values from the experimental textures using the viscoplastic self-consistent polycrystal plasticity model. The investigation revealed the variations in the textures due to annealing and symmetric/asymmetric rolling and showed that the R values correlate strongly with the evolution of the texture. An optimum heat treatment for the balance of strength, ductility, and deep drawability was found to be at 873 K (600 °C) for 30 minutes.
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Acknowledgments
The authors acknowledge the use of equipment within the Monash Centre for Electron Microscopy, including SEM FEI Quanta 3D funded through the Australian Research Council Grant LE0882821. The authors gratefully acknowledge financial support of this work by a Linkage Industrial project LP0989455 of the Australian Research Council.
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Manuscript submitted October 10, 2012.
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Orlov, D., Lapovok, R., Toth, L.S. et al. Asymmetric Rolling of Interstitial-Free Steel Using Differential Roll Diameters. Part II: Microstructure and Annealing Effects. Metall Mater Trans A 45, 447–454 (2014). https://doi.org/10.1007/s11661-013-1958-6
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DOI: https://doi.org/10.1007/s11661-013-1958-6