Simulation of casting, homogenization, and hot rolling: consecutive process and microstructure modelling for aluminium sheet production

Abstract

An overview of simulation of casting, homogenization, and hot rolling of an aluminium alloy is addressed in this paper. The microstructure models used to describe casting, solidification, precipitation (growth and coarsening) during homogenization, deformation texture evolution, and the work hardening behaviour are presented as well as their respective theoretical backgrounds. Emphasis is placed on interfacing the microstructure models with each other between the processing steps. This makes it possible to take into account microstructural changes that occur early during processing during later production steps. Along with this overview, reference will be made to previously presented simulation and experimental results-for validation-where appropriate.

Microstructure-based description of the deformation of metals: Theory and application

“…For aluminum, alloy development and the individual processes determining the microstructure are reasonably well understood and modeling is developed to a relatively high level. 13 Other materials, and particularly the steels, are less well understood and detailed microstructural modeling is still rare. This is in part due to the many complex phase transformation phenomena and kinetic pathways involved.…”

Recrystallization Modeling of AA8XXX Alloys with Cellular Automata Considering Recovering Kinetics

“…The sheet texture will primarily induce anisotropic flow behavior which -in industrial processing -can be a cause for significant earing of the sheets after deep drawing. [1][2][3] In a preceding SFB project, [1][2][3] different models have been coupled for a through-process modeling of sheet material and its applicability has been proved. In the present work the suggested modeling scheme has been extended and utilized.…”

“…The focus of the present work is the modeling of cold rolling and final annealing textures and microstructures of an AlÀFeÀSi alloy (AA8079L) by using a slightly modified through-process modeling scheme as suggested from the SFB project. [1][2][3] The through-process scheme requires the integration of various models. For the description of the strain path during cold rolling a plane strain deformation was assumed.…”

Physical and Numerical Simulation of Cold Rolling of an AlFeSi Alloy in Consideration of Static Recovery

“…[1][2][3] While TPM principally allows the fabrication of rolled aluminum products to be modeled from the cast block to the final strip, special aspects such as the determination of the parameters of the constitutive laws or the consideration of the dependency of the material behavior on the chemical composition are still subject to research activities. The present paper details experiments and finite element (FE) through-process simulations of the cold rolling of AA8079 from an application oriented point of view.…”