Simulation of static softening behavior of an aluminum alloy after cold strip rolling

• Published in: Computational materials science Vol. 69; pp. 53 - 61
• Main Authors: Salehi, M. Seyed, Serajzadeh, S.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.03.2013; Elsevier
• Subjects: Applied sciences; Cellular automata; Cold rolling; Exact sciences and technology; Finite element method; Forming; Metals. Metallurgy; Production techniques; Rolling; Static recovery; Static recrystallization; Static recovery; Finite element method; Cold rolling; Cellular automata; Static recrystallization; Initial condition; Strain softening; Isothermal annealing; Aluminium; Cellular automaton; Strain distribution; Kinetics; Strip material; Microstructure; Recovery (properties)
• ISSN: 0927-0256; 1879-0801
• DOI: 10.1016/j.commatsci.2012.11.028

► A multi-scale model is proposed to assess static softening rate after cold rolling. ► Static recrystallization and recovery are considered at the same time. ► Isothermal static recrystallization of cold rolled AA5052 is examined by the model. ► Reasonable agreement is found between the predictions and the experimental data. In this work, softening kinetics after cold rolling has been simulated using a coupled finite element-cellular automata model. Firstly, a two-dimensional rigid plastic finite element analysis has been developed to assess strain field and the stored energy accumulation during cold rolling as well as the initial condition of the mesoscopic model. Then, the cellular automata scheme has been employed to calculate the progress of static recrystallization at a given temperature while a dislocation-base model was simultaneously utilized to consider the effect of recovery on static softening process and final microstructures. The model has been examined on isothermal annealing of cold rolled AA5052 and a good agreement was found between the experimental observations and the predicted results.