Journal
MECHANICS OF MATERIALS
Volume 148, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.mechmat.2020.103420
Keywords
IF steel; DAMASK; Deformation; Stored energy; Texture simulations
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In the present work, the microstructure and texture evolution of interstitial free (IF) steel during cold rolling was studied experimentally and via simulations. Stored energy and geometrically necessary dislocation (GND) density maps were calculated from the electron backscattered diffraction (EBSD) data. The evolution of crystallographic texture, stress and strain during deformation were simulated using a full field crystal plasticity Fast Fourier Transform (CPFFT) model implemented in DAMASK (the Dusseldorf Advanced Material Simulation Kit), an open source code. The simulations for cold rolling of 2D i.e. EBSD data were done considering activation of one slip system ({110} < 111 >) as well as two slip systems ({110} < 111 > + {112} < 111 >), while for 3D data (statistical microstructure generated via DREAM.3D) two slip systems were used. The stored energy increased with the increase in cold rolling reduction in general, the increase being more in gamma fiber (ND//< 111 >) grains than the grains with other orientations. In experiments as well as simulations, the volume fraction of gamma fiber and alpha fiber (RD//< 110 >) increased with cold rolling. The simulations done using two slip systems matched reasonably well with the experiments. The stress and strain during deformation increased and showed similar trend for both 2D and 3D simulations.
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