Recrystallization Modeling of AA8XXX Alloys with Cellular Automata Considering Recovering Kinetics

Abstract

A through‐process modeling scheme for the prediction of recrystallization textures and microstructures after final annealing, subsequent to cold rolling is proposed and applied to a commercial AlFeSi alloy. The heart of the setup is a cellular automaton for modeling of recrystallization which considers changes in dislocation density by recovery and changes in Zener and solute drag due to microchemistry evolution. However, recrystallization is the crucial point in the whole setup, since it leads to significant changes in microstructure and texture. The simulated results are compared to experiments.

Modeling the Effect of Heating Rate on Recrystallization Texture Evolution in AA3103

“…The migration rate of the boundaries in the CORe model was classified into different regimes, i.e., low angle boundaries, high angle boundaries, and special boundaries to account for the preference of the 40° <111> relationship with enhanced mobility (for parameters see Table 2). Details, on how solute content, precipitation size, and volume fraction are accounted for, are given elsewhere 11. Parameters of the 3IVM+ model with respect to recovery can be found in Table 2.…”

Derivation of Recovery Kinetics From Stress Relaxation Tests

“…Such an approach is, for instance, used in the refined flow stress model 3IVMþ [17] which is utilized in through process simulations of aluminum sheet production. [18] Hence, DTU and DTL (or SR) tests will help to further improve the predictive power of 3IVMþ beyond the current state [17] and through process simulations altogether. [18] …”

“…[18] Hence, DTU and DTL (or SR) tests will help to further improve the predictive power of 3IVMþ beyond the current state [17] and through process simulations altogether. [18] …”

Simulation of non-isothermal recrystallization kinetics in cold-rolled steel

“…Salehi and Serajzadeh (2012) used a two-dimensional CA finite element model to simulate microstructural changes during static recrystallization within ferritic steels. Moreover, further works based on the cellular automata can be noted dealing with modeling of softening kinetics and microstructural changes during annealing processing of different alloy systems (Kugler and Turk 2006;Shabaniverki and Serajzadeh 2016;Davies and Hong 1999;Schafer et al 2010).…”